ctl.c revision 268545
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * Portions of this software were developed by Edward Tomasz Napierala 7 * under sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions, and the following disclaimer, 14 * without modification. 15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 16 * substantially similar to the "NO WARRANTY" disclaimer below 17 * ("Disclaimer") and any redistribution must be conditioned upon 18 * including a substantially similar Disclaimer requirement for further 19 * binary redistribution. 20 * 21 * NO WARRANTY 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 31 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGES. 33 * 34 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl.c#8 $ 35 */ 36/* 37 * CAM Target Layer, a SCSI device emulation subsystem. 38 * 39 * Author: Ken Merry <ken@FreeBSD.org> 40 */ 41 42#define _CTL_C 43 44#include <sys/cdefs.h> 45__FBSDID("$FreeBSD: stable/10/sys/cam/ctl/ctl.c 268545 2014-07-12 01:59:07Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/kernel.h> 50#include <sys/types.h> 51#include <sys/kthread.h> 52#include <sys/bio.h> 53#include <sys/fcntl.h> 54#include <sys/lock.h> 55#include <sys/module.h> 56#include <sys/mutex.h> 57#include <sys/condvar.h> 58#include <sys/malloc.h> 59#include <sys/conf.h> 60#include <sys/ioccom.h> 61#include <sys/queue.h> 62#include <sys/sbuf.h> 63#include <sys/smp.h> 64#include <sys/endian.h> 65#include <sys/sysctl.h> 66 67#include <cam/cam.h> 68#include <cam/scsi/scsi_all.h> 69#include <cam/scsi/scsi_da.h> 70#include <cam/ctl/ctl_io.h> 71#include <cam/ctl/ctl.h> 72#include <cam/ctl/ctl_frontend.h> 73#include <cam/ctl/ctl_frontend_internal.h> 74#include <cam/ctl/ctl_util.h> 75#include <cam/ctl/ctl_backend.h> 76#include <cam/ctl/ctl_ioctl.h> 77#include <cam/ctl/ctl_ha.h> 78#include <cam/ctl/ctl_private.h> 79#include <cam/ctl/ctl_debug.h> 80#include <cam/ctl/ctl_scsi_all.h> 81#include <cam/ctl/ctl_error.h> 82 83struct ctl_softc *control_softc = NULL; 84 85/* 86 * The default is to run with CTL_DONE_THREAD turned on. Completed 87 * transactions are queued for processing by the CTL work thread. When 88 * CTL_DONE_THREAD is not defined, completed transactions are processed in 89 * the caller's context. 90 */ 91#define CTL_DONE_THREAD 92 93/* 94 * Use the serial number and device ID provided by the backend, rather than 95 * making up our own. 96 */ 97#define CTL_USE_BACKEND_SN 98 99/* 100 * Size and alignment macros needed for Copan-specific HA hardware. These 101 * can go away when the HA code is re-written, and uses busdma for any 102 * hardware. 103 */ 104#define CTL_ALIGN_8B(target, source, type) \ 105 if (((uint32_t)source & 0x7) != 0) \ 106 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 107 else \ 108 target = (type)source; 109 110#define CTL_SIZE_8B(target, size) \ 111 if ((size & 0x7) != 0) \ 112 target = size + (0x8 - (size & 0x7)); \ 113 else \ 114 target = size; 115 116#define CTL_ALIGN_8B_MARGIN 16 117 118/* 119 * Template mode pages. 120 */ 121 122/* 123 * Note that these are default values only. The actual values will be 124 * filled in when the user does a mode sense. 125 */ 126static struct copan_power_subpage power_page_default = { 127 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 128 /*subpage*/ PWR_SUBPAGE_CODE, 129 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 130 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 131 /*page_version*/ PWR_VERSION, 132 /* total_luns */ 26, 133 /* max_active_luns*/ PWR_DFLT_MAX_LUNS, 134 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 135 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 136 0, 0, 0, 0, 0, 0} 137}; 138 139static struct copan_power_subpage power_page_changeable = { 140 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 141 /*subpage*/ PWR_SUBPAGE_CODE, 142 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 143 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 144 /*page_version*/ 0, 145 /* total_luns */ 0, 146 /* max_active_luns*/ 0, 147 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 148 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 149 0, 0, 0, 0, 0, 0} 150}; 151 152static struct copan_aps_subpage aps_page_default = { 153 APS_PAGE_CODE | SMPH_SPF, //page_code 154 APS_SUBPAGE_CODE, //subpage 155 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 156 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 157 APS_VERSION, //page_version 158 0, //lock_active 159 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 160 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 161 0, 0, 0, 0, 0} //reserved 162}; 163 164static struct copan_aps_subpage aps_page_changeable = { 165 APS_PAGE_CODE | SMPH_SPF, //page_code 166 APS_SUBPAGE_CODE, //subpage 167 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 168 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 169 0, //page_version 170 0, //lock_active 171 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 172 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 173 0, 0, 0, 0, 0} //reserved 174}; 175 176static struct copan_debugconf_subpage debugconf_page_default = { 177 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 178 DBGCNF_SUBPAGE_CODE, /* subpage */ 179 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 180 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 181 DBGCNF_VERSION, /* page_version */ 182 {CTL_TIME_IO_DEFAULT_SECS>>8, 183 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 184}; 185 186static struct copan_debugconf_subpage debugconf_page_changeable = { 187 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 188 DBGCNF_SUBPAGE_CODE, /* subpage */ 189 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 190 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 191 0, /* page_version */ 192 {0xff,0xff}, /* ctl_time_io_secs */ 193}; 194 195static struct scsi_format_page format_page_default = { 196 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 197 /*page_length*/sizeof(struct scsi_format_page) - 2, 198 /*tracks_per_zone*/ {0, 0}, 199 /*alt_sectors_per_zone*/ {0, 0}, 200 /*alt_tracks_per_zone*/ {0, 0}, 201 /*alt_tracks_per_lun*/ {0, 0}, 202 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 203 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 204 /*bytes_per_sector*/ {0, 0}, 205 /*interleave*/ {0, 0}, 206 /*track_skew*/ {0, 0}, 207 /*cylinder_skew*/ {0, 0}, 208 /*flags*/ SFP_HSEC, 209 /*reserved*/ {0, 0, 0} 210}; 211 212static struct scsi_format_page format_page_changeable = { 213 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 214 /*page_length*/sizeof(struct scsi_format_page) - 2, 215 /*tracks_per_zone*/ {0, 0}, 216 /*alt_sectors_per_zone*/ {0, 0}, 217 /*alt_tracks_per_zone*/ {0, 0}, 218 /*alt_tracks_per_lun*/ {0, 0}, 219 /*sectors_per_track*/ {0, 0}, 220 /*bytes_per_sector*/ {0, 0}, 221 /*interleave*/ {0, 0}, 222 /*track_skew*/ {0, 0}, 223 /*cylinder_skew*/ {0, 0}, 224 /*flags*/ 0, 225 /*reserved*/ {0, 0, 0} 226}; 227 228static struct scsi_rigid_disk_page rigid_disk_page_default = { 229 /*page_code*/SMS_RIGID_DISK_PAGE, 230 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 231 /*cylinders*/ {0, 0, 0}, 232 /*heads*/ CTL_DEFAULT_HEADS, 233 /*start_write_precomp*/ {0, 0, 0}, 234 /*start_reduced_current*/ {0, 0, 0}, 235 /*step_rate*/ {0, 0}, 236 /*landing_zone_cylinder*/ {0, 0, 0}, 237 /*rpl*/ SRDP_RPL_DISABLED, 238 /*rotational_offset*/ 0, 239 /*reserved1*/ 0, 240 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 241 CTL_DEFAULT_ROTATION_RATE & 0xff}, 242 /*reserved2*/ {0, 0} 243}; 244 245static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 246 /*page_code*/SMS_RIGID_DISK_PAGE, 247 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 248 /*cylinders*/ {0, 0, 0}, 249 /*heads*/ 0, 250 /*start_write_precomp*/ {0, 0, 0}, 251 /*start_reduced_current*/ {0, 0, 0}, 252 /*step_rate*/ {0, 0}, 253 /*landing_zone_cylinder*/ {0, 0, 0}, 254 /*rpl*/ 0, 255 /*rotational_offset*/ 0, 256 /*reserved1*/ 0, 257 /*rotation_rate*/ {0, 0}, 258 /*reserved2*/ {0, 0} 259}; 260 261static struct scsi_caching_page caching_page_default = { 262 /*page_code*/SMS_CACHING_PAGE, 263 /*page_length*/sizeof(struct scsi_caching_page) - 2, 264 /*flags1*/ SCP_DISC | SCP_WCE, 265 /*ret_priority*/ 0, 266 /*disable_pf_transfer_len*/ {0xff, 0xff}, 267 /*min_prefetch*/ {0, 0}, 268 /*max_prefetch*/ {0xff, 0xff}, 269 /*max_pf_ceiling*/ {0xff, 0xff}, 270 /*flags2*/ 0, 271 /*cache_segments*/ 0, 272 /*cache_seg_size*/ {0, 0}, 273 /*reserved*/ 0, 274 /*non_cache_seg_size*/ {0, 0, 0} 275}; 276 277static struct scsi_caching_page caching_page_changeable = { 278 /*page_code*/SMS_CACHING_PAGE, 279 /*page_length*/sizeof(struct scsi_caching_page) - 2, 280 /*flags1*/ 0, 281 /*ret_priority*/ 0, 282 /*disable_pf_transfer_len*/ {0, 0}, 283 /*min_prefetch*/ {0, 0}, 284 /*max_prefetch*/ {0, 0}, 285 /*max_pf_ceiling*/ {0, 0}, 286 /*flags2*/ 0, 287 /*cache_segments*/ 0, 288 /*cache_seg_size*/ {0, 0}, 289 /*reserved*/ 0, 290 /*non_cache_seg_size*/ {0, 0, 0} 291}; 292 293static struct scsi_control_page control_page_default = { 294 /*page_code*/SMS_CONTROL_MODE_PAGE, 295 /*page_length*/sizeof(struct scsi_control_page) - 2, 296 /*rlec*/0, 297 /*queue_flags*/0, 298 /*eca_and_aen*/0, 299 /*reserved*/0, 300 /*aen_holdoff_period*/{0, 0} 301}; 302 303static struct scsi_control_page control_page_changeable = { 304 /*page_code*/SMS_CONTROL_MODE_PAGE, 305 /*page_length*/sizeof(struct scsi_control_page) - 2, 306 /*rlec*/SCP_DSENSE, 307 /*queue_flags*/0, 308 /*eca_and_aen*/0, 309 /*reserved*/0, 310 /*aen_holdoff_period*/{0, 0} 311}; 312 313 314/* 315 * XXX KDM move these into the softc. 316 */ 317static int rcv_sync_msg; 318static int persis_offset; 319static uint8_t ctl_pause_rtr; 320static int ctl_is_single = 1; 321static int index_to_aps_page; 322 323SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 324static int worker_threads = 1; 325TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 326SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 327 &worker_threads, 1, "Number of worker threads"); 328static int verbose = 0; 329TUNABLE_INT("kern.cam.ctl.verbose", &verbose); 330SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 331 &verbose, 0, "Show SCSI errors returned to initiator"); 332 333/* 334 * Serial number (0x80), device id (0x83), supported pages (0x00), 335 * Block limits (0xB0) and Logical Block Provisioning (0xB2) 336 */ 337#define SCSI_EVPD_NUM_SUPPORTED_PAGES 5 338 339static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 340 int param); 341static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 342static int ctl_init(void); 343void ctl_shutdown(void); 344static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 345static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 346static void ctl_ioctl_online(void *arg); 347static void ctl_ioctl_offline(void *arg); 348static int ctl_ioctl_targ_enable(void *arg, struct ctl_id targ_id); 349static int ctl_ioctl_targ_disable(void *arg, struct ctl_id targ_id); 350static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 351static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 352static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 353static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio, int have_lock); 354static int ctl_ioctl_submit_wait(union ctl_io *io); 355static void ctl_ioctl_datamove(union ctl_io *io); 356static void ctl_ioctl_done(union ctl_io *io); 357static void ctl_ioctl_hard_startstop_callback(void *arg, 358 struct cfi_metatask *metatask); 359static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 360static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 361 struct ctl_ooa *ooa_hdr, 362 struct ctl_ooa_entry *kern_entries); 363static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 364 struct thread *td); 365uint32_t ctl_get_resindex(struct ctl_nexus *nexus); 366uint32_t ctl_port_idx(int port_num); 367#ifdef unused 368static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 369 uint32_t targ_target, uint32_t targ_lun, 370 int can_wait); 371static void ctl_kfree_io(union ctl_io *io); 372#endif /* unused */ 373static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 374 struct ctl_be_lun *be_lun, struct ctl_id target_id); 375static int ctl_free_lun(struct ctl_lun *lun); 376static void ctl_create_lun(struct ctl_be_lun *be_lun); 377/** 378static void ctl_failover_change_pages(struct ctl_softc *softc, 379 struct ctl_scsiio *ctsio, int master); 380**/ 381 382static int ctl_do_mode_select(union ctl_io *io); 383static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 384 uint64_t res_key, uint64_t sa_res_key, 385 uint8_t type, uint32_t residx, 386 struct ctl_scsiio *ctsio, 387 struct scsi_per_res_out *cdb, 388 struct scsi_per_res_out_parms* param); 389static void ctl_pro_preempt_other(struct ctl_lun *lun, 390 union ctl_ha_msg *msg); 391static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 392static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 393static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 394static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 395static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 396 int alloc_len); 397static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 398static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 399static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 400static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len); 401static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 402static ctl_action ctl_check_for_blockage(union ctl_io *pending_io, 403 union ctl_io *ooa_io); 404static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 405 union ctl_io *starting_io); 406static int ctl_check_blocked(struct ctl_lun *lun); 407static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 408 struct ctl_lun *lun, 409 struct ctl_cmd_entry *entry, 410 struct ctl_scsiio *ctsio); 411//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 412static void ctl_failover(void); 413static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 414 struct ctl_scsiio *ctsio); 415static int ctl_scsiio(struct ctl_scsiio *ctsio); 416 417static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 418static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 419 ctl_ua_type ua_type); 420static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 421 ctl_ua_type ua_type); 422static int ctl_abort_task(union ctl_io *io); 423static void ctl_run_task_queue(struct ctl_softc *ctl_softc); 424#ifdef CTL_IO_DELAY 425static void ctl_datamove_timer_wakeup(void *arg); 426static void ctl_done_timer_wakeup(void *arg); 427#endif /* CTL_IO_DELAY */ 428 429static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 430static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 431static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 432static void ctl_datamove_remote_write(union ctl_io *io); 433static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 434static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 435static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 436static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 437 ctl_ha_dt_cb callback); 438static void ctl_datamove_remote_read(union ctl_io *io); 439static void ctl_datamove_remote(union ctl_io *io); 440static int ctl_process_done(union ctl_io *io, int have_lock); 441static void ctl_work_thread(void *arg); 442 443/* 444 * Load the serialization table. This isn't very pretty, but is probably 445 * the easiest way to do it. 446 */ 447#include "ctl_ser_table.c" 448 449/* 450 * We only need to define open, close and ioctl routines for this driver. 451 */ 452static struct cdevsw ctl_cdevsw = { 453 .d_version = D_VERSION, 454 .d_flags = 0, 455 .d_open = ctl_open, 456 .d_close = ctl_close, 457 .d_ioctl = ctl_ioctl, 458 .d_name = "ctl", 459}; 460 461 462MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 463 464static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 465 466static moduledata_t ctl_moduledata = { 467 "ctl", 468 ctl_module_event_handler, 469 NULL 470}; 471 472DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 473MODULE_VERSION(ctl, 1); 474 475static void 476ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 477 union ctl_ha_msg *msg_info) 478{ 479 struct ctl_scsiio *ctsio; 480 481 if (msg_info->hdr.original_sc == NULL) { 482 printf("%s: original_sc == NULL!\n", __func__); 483 /* XXX KDM now what? */ 484 return; 485 } 486 487 ctsio = &msg_info->hdr.original_sc->scsiio; 488 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 489 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 490 ctsio->io_hdr.status = msg_info->hdr.status; 491 ctsio->scsi_status = msg_info->scsi.scsi_status; 492 ctsio->sense_len = msg_info->scsi.sense_len; 493 ctsio->sense_residual = msg_info->scsi.sense_residual; 494 ctsio->residual = msg_info->scsi.residual; 495 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 496 sizeof(ctsio->sense_data)); 497 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 498 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 499 STAILQ_INSERT_TAIL(&ctl_softc->isc_queue, &ctsio->io_hdr, links); 500 ctl_wakeup_thread(); 501} 502 503static void 504ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 505 union ctl_ha_msg *msg_info) 506{ 507 struct ctl_scsiio *ctsio; 508 509 if (msg_info->hdr.serializing_sc == NULL) { 510 printf("%s: serializing_sc == NULL!\n", __func__); 511 /* XXX KDM now what? */ 512 return; 513 } 514 515 ctsio = &msg_info->hdr.serializing_sc->scsiio; 516#if 0 517 /* 518 * Attempt to catch the situation where an I/O has 519 * been freed, and we're using it again. 520 */ 521 if (ctsio->io_hdr.io_type == 0xff) { 522 union ctl_io *tmp_io; 523 tmp_io = (union ctl_io *)ctsio; 524 printf("%s: %p use after free!\n", __func__, 525 ctsio); 526 printf("%s: type %d msg %d cdb %x iptl: " 527 "%d:%d:%d:%d tag 0x%04x " 528 "flag %#x status %x\n", 529 __func__, 530 tmp_io->io_hdr.io_type, 531 tmp_io->io_hdr.msg_type, 532 tmp_io->scsiio.cdb[0], 533 tmp_io->io_hdr.nexus.initid.id, 534 tmp_io->io_hdr.nexus.targ_port, 535 tmp_io->io_hdr.nexus.targ_target.id, 536 tmp_io->io_hdr.nexus.targ_lun, 537 (tmp_io->io_hdr.io_type == 538 CTL_IO_TASK) ? 539 tmp_io->taskio.tag_num : 540 tmp_io->scsiio.tag_num, 541 tmp_io->io_hdr.flags, 542 tmp_io->io_hdr.status); 543 } 544#endif 545 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 546 STAILQ_INSERT_TAIL(&ctl_softc->isc_queue, &ctsio->io_hdr, links); 547 ctl_wakeup_thread(); 548} 549 550/* 551 * ISC (Inter Shelf Communication) event handler. Events from the HA 552 * subsystem come in here. 553 */ 554static void 555ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 556{ 557 struct ctl_softc *ctl_softc; 558 union ctl_io *io; 559 struct ctl_prio *presio; 560 ctl_ha_status isc_status; 561 562 ctl_softc = control_softc; 563 io = NULL; 564 565 566#if 0 567 printf("CTL: Isc Msg event %d\n", event); 568#endif 569 if (event == CTL_HA_EVT_MSG_RECV) { 570 union ctl_ha_msg msg_info; 571 572 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 573 sizeof(msg_info), /*wait*/ 0); 574#if 0 575 printf("CTL: msg_type %d\n", msg_info.msg_type); 576#endif 577 if (isc_status != 0) { 578 printf("Error receiving message, status = %d\n", 579 isc_status); 580 return; 581 } 582 mtx_lock(&ctl_softc->ctl_lock); 583 584 switch (msg_info.hdr.msg_type) { 585 case CTL_MSG_SERIALIZE: 586#if 0 587 printf("Serialize\n"); 588#endif 589 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 590 if (io == NULL) { 591 printf("ctl_isc_event_handler: can't allocate " 592 "ctl_io!\n"); 593 /* Bad Juju */ 594 /* Need to set busy and send msg back */ 595 mtx_unlock(&ctl_softc->ctl_lock); 596 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 597 msg_info.hdr.status = CTL_SCSI_ERROR; 598 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 599 msg_info.scsi.sense_len = 0; 600 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 601 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 602 } 603 goto bailout; 604 } 605 ctl_zero_io(io); 606 // populate ctsio from msg_info 607 io->io_hdr.io_type = CTL_IO_SCSI; 608 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 609 io->io_hdr.original_sc = msg_info.hdr.original_sc; 610#if 0 611 printf("pOrig %x\n", (int)msg_info.original_sc); 612#endif 613 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 614 CTL_FLAG_IO_ACTIVE; 615 /* 616 * If we're in serialization-only mode, we don't 617 * want to go through full done processing. Thus 618 * the COPY flag. 619 * 620 * XXX KDM add another flag that is more specific. 621 */ 622 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 623 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 624 io->io_hdr.nexus = msg_info.hdr.nexus; 625#if 0 626 printf("targ %d, port %d, iid %d, lun %d\n", 627 io->io_hdr.nexus.targ_target.id, 628 io->io_hdr.nexus.targ_port, 629 io->io_hdr.nexus.initid.id, 630 io->io_hdr.nexus.targ_lun); 631#endif 632 io->scsiio.tag_num = msg_info.scsi.tag_num; 633 io->scsiio.tag_type = msg_info.scsi.tag_type; 634 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 635 CTL_MAX_CDBLEN); 636 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 637 struct ctl_cmd_entry *entry; 638 uint8_t opcode; 639 640 opcode = io->scsiio.cdb[0]; 641 entry = &ctl_cmd_table[opcode]; 642 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 643 io->io_hdr.flags |= 644 entry->flags & CTL_FLAG_DATA_MASK; 645 } 646 STAILQ_INSERT_TAIL(&ctl_softc->isc_queue, 647 &io->io_hdr, links); 648 ctl_wakeup_thread(); 649 break; 650 651 /* Performed on the Originating SC, XFER mode only */ 652 case CTL_MSG_DATAMOVE: { 653 struct ctl_sg_entry *sgl; 654 int i, j; 655 656 io = msg_info.hdr.original_sc; 657 if (io == NULL) { 658 printf("%s: original_sc == NULL!\n", __func__); 659 /* XXX KDM do something here */ 660 break; 661 } 662 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 663 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 664 /* 665 * Keep track of this, we need to send it back over 666 * when the datamove is complete. 667 */ 668 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 669 670 if (msg_info.dt.sg_sequence == 0) { 671 /* 672 * XXX KDM we use the preallocated S/G list 673 * here, but we'll need to change this to 674 * dynamic allocation if we need larger S/G 675 * lists. 676 */ 677 if (msg_info.dt.kern_sg_entries > 678 sizeof(io->io_hdr.remote_sglist) / 679 sizeof(io->io_hdr.remote_sglist[0])) { 680 printf("%s: number of S/G entries " 681 "needed %u > allocated num %zd\n", 682 __func__, 683 msg_info.dt.kern_sg_entries, 684 sizeof(io->io_hdr.remote_sglist)/ 685 sizeof(io->io_hdr.remote_sglist[0])); 686 687 /* 688 * XXX KDM send a message back to 689 * the other side to shut down the 690 * DMA. The error will come back 691 * through via the normal channel. 692 */ 693 break; 694 } 695 sgl = io->io_hdr.remote_sglist; 696 memset(sgl, 0, 697 sizeof(io->io_hdr.remote_sglist)); 698 699 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 700 701 io->scsiio.kern_sg_entries = 702 msg_info.dt.kern_sg_entries; 703 io->scsiio.rem_sg_entries = 704 msg_info.dt.kern_sg_entries; 705 io->scsiio.kern_data_len = 706 msg_info.dt.kern_data_len; 707 io->scsiio.kern_total_len = 708 msg_info.dt.kern_total_len; 709 io->scsiio.kern_data_resid = 710 msg_info.dt.kern_data_resid; 711 io->scsiio.kern_rel_offset = 712 msg_info.dt.kern_rel_offset; 713 /* 714 * Clear out per-DMA flags. 715 */ 716 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 717 /* 718 * Add per-DMA flags that are set for this 719 * particular DMA request. 720 */ 721 io->io_hdr.flags |= msg_info.dt.flags & 722 CTL_FLAG_RDMA_MASK; 723 } else 724 sgl = (struct ctl_sg_entry *) 725 io->scsiio.kern_data_ptr; 726 727 for (i = msg_info.dt.sent_sg_entries, j = 0; 728 i < (msg_info.dt.sent_sg_entries + 729 msg_info.dt.cur_sg_entries); i++, j++) { 730 sgl[i].addr = msg_info.dt.sg_list[j].addr; 731 sgl[i].len = msg_info.dt.sg_list[j].len; 732 733#if 0 734 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 735 __func__, 736 msg_info.dt.sg_list[j].addr, 737 msg_info.dt.sg_list[j].len, 738 sgl[i].addr, sgl[i].len, j, i); 739#endif 740 } 741#if 0 742 memcpy(&sgl[msg_info.dt.sent_sg_entries], 743 msg_info.dt.sg_list, 744 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 745#endif 746 747 /* 748 * If this is the last piece of the I/O, we've got 749 * the full S/G list. Queue processing in the thread. 750 * Otherwise wait for the next piece. 751 */ 752 if (msg_info.dt.sg_last != 0) { 753 STAILQ_INSERT_TAIL(&ctl_softc->isc_queue, 754 &io->io_hdr, links); 755 ctl_wakeup_thread(); 756 } 757 break; 758 } 759 /* Performed on the Serializing (primary) SC, XFER mode only */ 760 case CTL_MSG_DATAMOVE_DONE: { 761 if (msg_info.hdr.serializing_sc == NULL) { 762 printf("%s: serializing_sc == NULL!\n", 763 __func__); 764 /* XXX KDM now what? */ 765 break; 766 } 767 /* 768 * We grab the sense information here in case 769 * there was a failure, so we can return status 770 * back to the initiator. 771 */ 772 io = msg_info.hdr.serializing_sc; 773 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 774 io->io_hdr.status = msg_info.hdr.status; 775 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 776 io->scsiio.sense_len = msg_info.scsi.sense_len; 777 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 778 io->io_hdr.port_status = msg_info.scsi.fetd_status; 779 io->scsiio.residual = msg_info.scsi.residual; 780 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 781 sizeof(io->scsiio.sense_data)); 782 783 STAILQ_INSERT_TAIL(&ctl_softc->isc_queue, 784 &io->io_hdr, links); 785 ctl_wakeup_thread(); 786 break; 787 } 788 789 /* Preformed on Originating SC, SER_ONLY mode */ 790 case CTL_MSG_R2R: 791 io = msg_info.hdr.original_sc; 792 if (io == NULL) { 793 printf("%s: Major Bummer\n", __func__); 794 mtx_unlock(&ctl_softc->ctl_lock); 795 return; 796 } else { 797#if 0 798 printf("pOrig %x\n",(int) ctsio); 799#endif 800 } 801 io->io_hdr.msg_type = CTL_MSG_R2R; 802 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 803 STAILQ_INSERT_TAIL(&ctl_softc->isc_queue, 804 &io->io_hdr, links); 805 ctl_wakeup_thread(); 806 break; 807 808 /* 809 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 810 * mode. 811 * Performed on the Originating (i.e. secondary) SC in XFER 812 * mode 813 */ 814 case CTL_MSG_FINISH_IO: 815 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 816 ctl_isc_handler_finish_xfer(ctl_softc, 817 &msg_info); 818 else 819 ctl_isc_handler_finish_ser_only(ctl_softc, 820 &msg_info); 821 break; 822 823 /* Preformed on Originating SC */ 824 case CTL_MSG_BAD_JUJU: 825 io = msg_info.hdr.original_sc; 826 if (io == NULL) { 827 printf("%s: Bad JUJU!, original_sc is NULL!\n", 828 __func__); 829 break; 830 } 831 ctl_copy_sense_data(&msg_info, io); 832 /* 833 * IO should have already been cleaned up on other 834 * SC so clear this flag so we won't send a message 835 * back to finish the IO there. 836 */ 837 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 838 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 839 840 /* io = msg_info.hdr.serializing_sc; */ 841 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 842 STAILQ_INSERT_TAIL(&ctl_softc->isc_queue, 843 &io->io_hdr, links); 844 ctl_wakeup_thread(); 845 break; 846 847 /* Handle resets sent from the other side */ 848 case CTL_MSG_MANAGE_TASKS: { 849 struct ctl_taskio *taskio; 850 taskio = (struct ctl_taskio *)ctl_alloc_io( 851 (void *)ctl_softc->othersc_pool); 852 if (taskio == NULL) { 853 printf("ctl_isc_event_handler: can't allocate " 854 "ctl_io!\n"); 855 /* Bad Juju */ 856 /* should I just call the proper reset func 857 here??? */ 858 mtx_unlock(&ctl_softc->ctl_lock); 859 goto bailout; 860 } 861 ctl_zero_io((union ctl_io *)taskio); 862 taskio->io_hdr.io_type = CTL_IO_TASK; 863 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 864 taskio->io_hdr.nexus = msg_info.hdr.nexus; 865 taskio->task_action = msg_info.task.task_action; 866 taskio->tag_num = msg_info.task.tag_num; 867 taskio->tag_type = msg_info.task.tag_type; 868#ifdef CTL_TIME_IO 869 taskio->io_hdr.start_time = time_uptime; 870 getbintime(&taskio->io_hdr.start_bt); 871#if 0 872 cs_prof_gettime(&taskio->io_hdr.start_ticks); 873#endif 874#endif /* CTL_TIME_IO */ 875 STAILQ_INSERT_TAIL(&ctl_softc->task_queue, 876 &taskio->io_hdr, links); 877 ctl_softc->flags |= CTL_FLAG_TASK_PENDING; 878 ctl_wakeup_thread(); 879 break; 880 } 881 /* Persistent Reserve action which needs attention */ 882 case CTL_MSG_PERS_ACTION: 883 presio = (struct ctl_prio *)ctl_alloc_io( 884 (void *)ctl_softc->othersc_pool); 885 if (presio == NULL) { 886 printf("ctl_isc_event_handler: can't allocate " 887 "ctl_io!\n"); 888 /* Bad Juju */ 889 /* Need to set busy and send msg back */ 890 mtx_unlock(&ctl_softc->ctl_lock); 891 goto bailout; 892 } 893 ctl_zero_io((union ctl_io *)presio); 894 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 895 presio->pr_msg = msg_info.pr; 896 STAILQ_INSERT_TAIL(&ctl_softc->isc_queue, 897 &presio->io_hdr, links); 898 ctl_wakeup_thread(); 899 break; 900 case CTL_MSG_SYNC_FE: 901 rcv_sync_msg = 1; 902 break; 903 case CTL_MSG_APS_LOCK: { 904 // It's quicker to execute this then to 905 // queue it. 906 struct ctl_lun *lun; 907 struct ctl_page_index *page_index; 908 struct copan_aps_subpage *current_sp; 909 uint32_t targ_lun; 910 911 targ_lun = msg_info.hdr.nexus.targ_lun; 912 if (msg_info.hdr.nexus.lun_map_fn != NULL) 913 targ_lun = msg_info.hdr.nexus.lun_map_fn(msg_info.hdr.nexus.lun_map_arg, targ_lun); 914 915 lun = ctl_softc->ctl_luns[targ_lun]; 916 page_index = &lun->mode_pages.index[index_to_aps_page]; 917 current_sp = (struct copan_aps_subpage *) 918 (page_index->page_data + 919 (page_index->page_len * CTL_PAGE_CURRENT)); 920 921 current_sp->lock_active = msg_info.aps.lock_flag; 922 break; 923 } 924 default: 925 printf("How did I get here?\n"); 926 } 927 mtx_unlock(&ctl_softc->ctl_lock); 928 } else if (event == CTL_HA_EVT_MSG_SENT) { 929 if (param != CTL_HA_STATUS_SUCCESS) { 930 printf("Bad status from ctl_ha_msg_send status %d\n", 931 param); 932 } 933 return; 934 } else if (event == CTL_HA_EVT_DISCONNECT) { 935 printf("CTL: Got a disconnect from Isc\n"); 936 return; 937 } else { 938 printf("ctl_isc_event_handler: Unknown event %d\n", event); 939 return; 940 } 941 942bailout: 943 return; 944} 945 946static void 947ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 948{ 949 struct scsi_sense_data *sense; 950 951 sense = &dest->scsiio.sense_data; 952 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 953 dest->scsiio.scsi_status = src->scsi.scsi_status; 954 dest->scsiio.sense_len = src->scsi.sense_len; 955 dest->io_hdr.status = src->hdr.status; 956} 957 958static int 959ctl_init(void) 960{ 961 struct ctl_softc *softc; 962 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 963 struct ctl_frontend *fe; 964 uint8_t sc_id =0; 965 int i, error, retval; 966 //int isc_retval; 967 968 retval = 0; 969 ctl_pause_rtr = 0; 970 rcv_sync_msg = 0; 971 972 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 973 M_WAITOK | M_ZERO); 974 softc = control_softc; 975 976 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 977 "cam/ctl"); 978 979 softc->dev->si_drv1 = softc; 980 981 /* 982 * By default, return a "bad LUN" peripheral qualifier for unknown 983 * LUNs. The user can override this default using the tunable or 984 * sysctl. See the comment in ctl_inquiry_std() for more details. 985 */ 986 softc->inquiry_pq_no_lun = 1; 987 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 988 &softc->inquiry_pq_no_lun); 989 sysctl_ctx_init(&softc->sysctl_ctx); 990 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 991 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 992 CTLFLAG_RD, 0, "CAM Target Layer"); 993 994 if (softc->sysctl_tree == NULL) { 995 printf("%s: unable to allocate sysctl tree\n", __func__); 996 destroy_dev(softc->dev); 997 free(control_softc, M_DEVBUF); 998 control_softc = NULL; 999 return (ENOMEM); 1000 } 1001 1002 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1003 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1004 "inquiry_pq_no_lun", CTLFLAG_RW, 1005 &softc->inquiry_pq_no_lun, 0, 1006 "Report no lun possible for invalid LUNs"); 1007 1008 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1009 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 1010 softc->open_count = 0; 1011 1012 /* 1013 * Default to actually sending a SYNCHRONIZE CACHE command down to 1014 * the drive. 1015 */ 1016 softc->flags = CTL_FLAG_REAL_SYNC; 1017 1018 /* 1019 * In Copan's HA scheme, the "master" and "slave" roles are 1020 * figured out through the slot the controller is in. Although it 1021 * is an active/active system, someone has to be in charge. 1022 */ 1023#ifdef NEEDTOPORT 1024 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1025#endif 1026 1027 if (sc_id == 0) { 1028 softc->flags |= CTL_FLAG_MASTER_SHELF; 1029 persis_offset = 0; 1030 } else 1031 persis_offset = CTL_MAX_INITIATORS; 1032 1033 /* 1034 * XXX KDM need to figure out where we want to get our target ID 1035 * and WWID. Is it different on each port? 1036 */ 1037 softc->target.id = 0; 1038 softc->target.wwid[0] = 0x12345678; 1039 softc->target.wwid[1] = 0x87654321; 1040 STAILQ_INIT(&softc->lun_list); 1041 STAILQ_INIT(&softc->pending_lun_queue); 1042 STAILQ_INIT(&softc->task_queue); 1043 STAILQ_INIT(&softc->incoming_queue); 1044 STAILQ_INIT(&softc->rtr_queue); 1045 STAILQ_INIT(&softc->done_queue); 1046 STAILQ_INIT(&softc->isc_queue); 1047 STAILQ_INIT(&softc->fe_list); 1048 STAILQ_INIT(&softc->be_list); 1049 STAILQ_INIT(&softc->io_pools); 1050 1051 /* 1052 * We don't bother calling these with ctl_lock held here, because, 1053 * in theory, no one else can try to do anything while we're in our 1054 * module init routine. 1055 */ 1056 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1057 &internal_pool)!= 0){ 1058 printf("ctl: can't allocate %d entry internal pool, " 1059 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1060 return (ENOMEM); 1061 } 1062 1063 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1064 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1065 printf("ctl: can't allocate %d entry emergency pool, " 1066 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1067 ctl_pool_free(internal_pool); 1068 return (ENOMEM); 1069 } 1070 1071 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1072 &other_pool) != 0) 1073 { 1074 printf("ctl: can't allocate %d entry other SC pool, " 1075 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1076 ctl_pool_free(internal_pool); 1077 ctl_pool_free(emergency_pool); 1078 return (ENOMEM); 1079 } 1080 1081 softc->internal_pool = internal_pool; 1082 softc->emergency_pool = emergency_pool; 1083 softc->othersc_pool = other_pool; 1084 1085 if (worker_threads > MAXCPU || worker_threads == 0) { 1086 printf("invalid kern.cam.ctl.worker_threads value; " 1087 "setting to 1"); 1088 worker_threads = 1; 1089 } else if (worker_threads < 0) { 1090 if (mp_ncpus > 2) { 1091 /* 1092 * Using more than two worker threads actually hurts 1093 * performance due to lock contention. 1094 */ 1095 worker_threads = 2; 1096 } else { 1097 worker_threads = 1; 1098 } 1099 } 1100 1101 for (i = 0; i < worker_threads; i++) { 1102 error = kproc_kthread_add(ctl_work_thread, softc, 1103 &softc->work_thread, NULL, 0, 0, "ctl", "work%d", i); 1104 if (error != 0) { 1105 printf("error creating CTL work thread!\n"); 1106 ctl_pool_free(internal_pool); 1107 ctl_pool_free(emergency_pool); 1108 ctl_pool_free(other_pool); 1109 return (error); 1110 } 1111 } 1112 if (bootverbose) 1113 printf("ctl: CAM Target Layer loaded\n"); 1114 1115 /* 1116 * Initialize the initiator and portname mappings 1117 */ 1118 memset(softc->wwpn_iid, 0, sizeof(softc->wwpn_iid)); 1119 1120 /* 1121 * Initialize the ioctl front end. 1122 */ 1123 fe = &softc->ioctl_info.fe; 1124 sprintf(softc->ioctl_info.port_name, "CTL ioctl"); 1125 fe->port_type = CTL_PORT_IOCTL; 1126 fe->num_requested_ctl_io = 100; 1127 fe->port_name = softc->ioctl_info.port_name; 1128 fe->port_online = ctl_ioctl_online; 1129 fe->port_offline = ctl_ioctl_offline; 1130 fe->onoff_arg = &softc->ioctl_info; 1131 fe->targ_enable = ctl_ioctl_targ_enable; 1132 fe->targ_disable = ctl_ioctl_targ_disable; 1133 fe->lun_enable = ctl_ioctl_lun_enable; 1134 fe->lun_disable = ctl_ioctl_lun_disable; 1135 fe->targ_lun_arg = &softc->ioctl_info; 1136 fe->fe_datamove = ctl_ioctl_datamove; 1137 fe->fe_done = ctl_ioctl_done; 1138 fe->max_targets = 15; 1139 fe->max_target_id = 15; 1140 1141 if (ctl_frontend_register(&softc->ioctl_info.fe, 1142 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1143 printf("ctl: ioctl front end registration failed, will " 1144 "continue anyway\n"); 1145 } 1146 1147#ifdef CTL_IO_DELAY 1148 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1149 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1150 sizeof(struct callout), CTL_TIMER_BYTES); 1151 return (EINVAL); 1152 } 1153#endif /* CTL_IO_DELAY */ 1154 1155 return (0); 1156} 1157 1158void 1159ctl_shutdown(void) 1160{ 1161 struct ctl_softc *softc; 1162 struct ctl_lun *lun, *next_lun; 1163 struct ctl_io_pool *pool; 1164 1165 softc = (struct ctl_softc *)control_softc; 1166 1167 if (ctl_frontend_deregister(&softc->ioctl_info.fe) != 0) 1168 printf("ctl: ioctl front end deregistration failed\n"); 1169 1170 mtx_lock(&softc->ctl_lock); 1171 1172 /* 1173 * Free up each LUN. 1174 */ 1175 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1176 next_lun = STAILQ_NEXT(lun, links); 1177 ctl_free_lun(lun); 1178 } 1179 1180 mtx_unlock(&softc->ctl_lock); 1181 1182 /* 1183 * This will rip the rug out from under any FETDs or anyone else 1184 * that has a pool allocated. Since we increment our module 1185 * refcount any time someone outside the main CTL module allocates 1186 * a pool, we shouldn't have any problems here. The user won't be 1187 * able to unload the CTL module until client modules have 1188 * successfully unloaded. 1189 */ 1190 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1191 ctl_pool_free(pool); 1192 1193#if 0 1194 ctl_shutdown_thread(softc->work_thread); 1195#endif 1196 1197 mtx_destroy(&softc->pool_lock); 1198 mtx_destroy(&softc->ctl_lock); 1199 1200 destroy_dev(softc->dev); 1201 1202 sysctl_ctx_free(&softc->sysctl_ctx); 1203 1204 free(control_softc, M_DEVBUF); 1205 control_softc = NULL; 1206 1207 if (bootverbose) 1208 printf("ctl: CAM Target Layer unloaded\n"); 1209} 1210 1211static int 1212ctl_module_event_handler(module_t mod, int what, void *arg) 1213{ 1214 1215 switch (what) { 1216 case MOD_LOAD: 1217 return (ctl_init()); 1218 case MOD_UNLOAD: 1219 return (EBUSY); 1220 default: 1221 return (EOPNOTSUPP); 1222 } 1223} 1224 1225/* 1226 * XXX KDM should we do some access checks here? Bump a reference count to 1227 * prevent a CTL module from being unloaded while someone has it open? 1228 */ 1229static int 1230ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1231{ 1232 return (0); 1233} 1234 1235static int 1236ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1237{ 1238 return (0); 1239} 1240 1241int 1242ctl_port_enable(ctl_port_type port_type) 1243{ 1244 struct ctl_softc *softc; 1245 struct ctl_frontend *fe; 1246 1247 if (ctl_is_single == 0) { 1248 union ctl_ha_msg msg_info; 1249 int isc_retval; 1250 1251#if 0 1252 printf("%s: HA mode, synchronizing frontend enable\n", 1253 __func__); 1254#endif 1255 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1256 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1257 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1258 printf("Sync msg send error retval %d\n", isc_retval); 1259 } 1260 if (!rcv_sync_msg) { 1261 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1262 sizeof(msg_info), 1); 1263 } 1264#if 0 1265 printf("CTL:Frontend Enable\n"); 1266 } else { 1267 printf("%s: single mode, skipping frontend synchronization\n", 1268 __func__); 1269#endif 1270 } 1271 1272 softc = control_softc; 1273 1274 STAILQ_FOREACH(fe, &softc->fe_list, links) { 1275 if (port_type & fe->port_type) 1276 { 1277#if 0 1278 printf("port %d\n", fe->targ_port); 1279#endif 1280 ctl_frontend_online(fe); 1281 } 1282 } 1283 1284 return (0); 1285} 1286 1287int 1288ctl_port_disable(ctl_port_type port_type) 1289{ 1290 struct ctl_softc *softc; 1291 struct ctl_frontend *fe; 1292 1293 softc = control_softc; 1294 1295 STAILQ_FOREACH(fe, &softc->fe_list, links) { 1296 if (port_type & fe->port_type) 1297 ctl_frontend_offline(fe); 1298 } 1299 1300 return (0); 1301} 1302 1303/* 1304 * Returns 0 for success, 1 for failure. 1305 * Currently the only failure mode is if there aren't enough entries 1306 * allocated. So, in case of a failure, look at num_entries_dropped, 1307 * reallocate and try again. 1308 */ 1309int 1310ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1311 int *num_entries_filled, int *num_entries_dropped, 1312 ctl_port_type port_type, int no_virtual) 1313{ 1314 struct ctl_softc *softc; 1315 struct ctl_frontend *fe; 1316 int entries_dropped, entries_filled; 1317 int retval; 1318 int i; 1319 1320 softc = control_softc; 1321 1322 retval = 0; 1323 entries_filled = 0; 1324 entries_dropped = 0; 1325 1326 i = 0; 1327 mtx_lock(&softc->ctl_lock); 1328 STAILQ_FOREACH(fe, &softc->fe_list, links) { 1329 struct ctl_port_entry *entry; 1330 1331 if ((fe->port_type & port_type) == 0) 1332 continue; 1333 1334 if ((no_virtual != 0) 1335 && (fe->virtual_port != 0)) 1336 continue; 1337 1338 if (entries_filled >= num_entries_alloced) { 1339 entries_dropped++; 1340 continue; 1341 } 1342 entry = &entries[i]; 1343 1344 entry->port_type = fe->port_type; 1345 strlcpy(entry->port_name, fe->port_name, 1346 sizeof(entry->port_name)); 1347 entry->physical_port = fe->physical_port; 1348 entry->virtual_port = fe->virtual_port; 1349 entry->wwnn = fe->wwnn; 1350 entry->wwpn = fe->wwpn; 1351 1352 i++; 1353 entries_filled++; 1354 } 1355 1356 mtx_unlock(&softc->ctl_lock); 1357 1358 if (entries_dropped > 0) 1359 retval = 1; 1360 1361 *num_entries_dropped = entries_dropped; 1362 *num_entries_filled = entries_filled; 1363 1364 return (retval); 1365} 1366 1367static void 1368ctl_ioctl_online(void *arg) 1369{ 1370 struct ctl_ioctl_info *ioctl_info; 1371 1372 ioctl_info = (struct ctl_ioctl_info *)arg; 1373 1374 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1375} 1376 1377static void 1378ctl_ioctl_offline(void *arg) 1379{ 1380 struct ctl_ioctl_info *ioctl_info; 1381 1382 ioctl_info = (struct ctl_ioctl_info *)arg; 1383 1384 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1385} 1386 1387/* 1388 * Remove an initiator by port number and initiator ID. 1389 * Returns 0 for success, 1 for failure. 1390 */ 1391int 1392ctl_remove_initiator(int32_t targ_port, uint32_t iid) 1393{ 1394 struct ctl_softc *softc; 1395 1396 softc = control_softc; 1397 1398 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1399 1400 if ((targ_port < 0) 1401 || (targ_port > CTL_MAX_PORTS)) { 1402 printf("%s: invalid port number %d\n", __func__, targ_port); 1403 return (1); 1404 } 1405 if (iid > CTL_MAX_INIT_PER_PORT) { 1406 printf("%s: initiator ID %u > maximun %u!\n", 1407 __func__, iid, CTL_MAX_INIT_PER_PORT); 1408 return (1); 1409 } 1410 1411 mtx_lock(&softc->ctl_lock); 1412 1413 softc->wwpn_iid[targ_port][iid].in_use = 0; 1414 1415 mtx_unlock(&softc->ctl_lock); 1416 1417 return (0); 1418} 1419 1420/* 1421 * Add an initiator to the initiator map. 1422 * Returns 0 for success, 1 for failure. 1423 */ 1424int 1425ctl_add_initiator(uint64_t wwpn, int32_t targ_port, uint32_t iid) 1426{ 1427 struct ctl_softc *softc; 1428 int retval; 1429 1430 softc = control_softc; 1431 1432 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1433 1434 retval = 0; 1435 1436 if ((targ_port < 0) 1437 || (targ_port > CTL_MAX_PORTS)) { 1438 printf("%s: invalid port number %d\n", __func__, targ_port); 1439 return (1); 1440 } 1441 if (iid > CTL_MAX_INIT_PER_PORT) { 1442 printf("%s: WWPN %#jx initiator ID %u > maximun %u!\n", 1443 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1444 return (1); 1445 } 1446 1447 mtx_lock(&softc->ctl_lock); 1448 1449 if (softc->wwpn_iid[targ_port][iid].in_use != 0) { 1450 /* 1451 * We don't treat this as an error. 1452 */ 1453 if (softc->wwpn_iid[targ_port][iid].wwpn == wwpn) { 1454 printf("%s: port %d iid %u WWPN %#jx arrived again?\n", 1455 __func__, targ_port, iid, (uintmax_t)wwpn); 1456 goto bailout; 1457 } 1458 1459 /* 1460 * This is an error, but what do we do about it? The 1461 * driver is telling us we have a new WWPN for this 1462 * initiator ID, so we pretty much need to use it. 1463 */ 1464 printf("%s: port %d iid %u WWPN %#jx arrived, WWPN %#jx is " 1465 "still at that address\n", __func__, targ_port, iid, 1466 (uintmax_t)wwpn, 1467 (uintmax_t)softc->wwpn_iid[targ_port][iid].wwpn); 1468 1469 /* 1470 * XXX KDM clear have_ca and ua_pending on each LUN for 1471 * this initiator. 1472 */ 1473 } 1474 softc->wwpn_iid[targ_port][iid].in_use = 1; 1475 softc->wwpn_iid[targ_port][iid].iid = iid; 1476 softc->wwpn_iid[targ_port][iid].wwpn = wwpn; 1477 softc->wwpn_iid[targ_port][iid].port = targ_port; 1478 1479bailout: 1480 1481 mtx_unlock(&softc->ctl_lock); 1482 1483 return (retval); 1484} 1485 1486/* 1487 * XXX KDM should we pretend to do something in the target/lun 1488 * enable/disable functions? 1489 */ 1490static int 1491ctl_ioctl_targ_enable(void *arg, struct ctl_id targ_id) 1492{ 1493 return (0); 1494} 1495 1496static int 1497ctl_ioctl_targ_disable(void *arg, struct ctl_id targ_id) 1498{ 1499 return (0); 1500} 1501 1502static int 1503ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1504{ 1505 return (0); 1506} 1507 1508static int 1509ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1510{ 1511 return (0); 1512} 1513 1514/* 1515 * Data movement routine for the CTL ioctl frontend port. 1516 */ 1517static int 1518ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1519{ 1520 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1521 struct ctl_sg_entry ext_entry, kern_entry; 1522 int ext_sglen, ext_sg_entries, kern_sg_entries; 1523 int ext_sg_start, ext_offset; 1524 int len_to_copy, len_copied; 1525 int kern_watermark, ext_watermark; 1526 int ext_sglist_malloced; 1527 int i, j; 1528 1529 ext_sglist_malloced = 0; 1530 ext_sg_start = 0; 1531 ext_offset = 0; 1532 1533 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1534 1535 /* 1536 * If this flag is set, fake the data transfer. 1537 */ 1538 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1539 ctsio->ext_data_filled = ctsio->ext_data_len; 1540 goto bailout; 1541 } 1542 1543 /* 1544 * To simplify things here, if we have a single buffer, stick it in 1545 * a S/G entry and just make it a single entry S/G list. 1546 */ 1547 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1548 int len_seen; 1549 1550 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1551 1552 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1553 M_WAITOK); 1554 ext_sglist_malloced = 1; 1555 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1556 ext_sglen) != 0) { 1557 ctl_set_internal_failure(ctsio, 1558 /*sks_valid*/ 0, 1559 /*retry_count*/ 0); 1560 goto bailout; 1561 } 1562 ext_sg_entries = ctsio->ext_sg_entries; 1563 len_seen = 0; 1564 for (i = 0; i < ext_sg_entries; i++) { 1565 if ((len_seen + ext_sglist[i].len) >= 1566 ctsio->ext_data_filled) { 1567 ext_sg_start = i; 1568 ext_offset = ctsio->ext_data_filled - len_seen; 1569 break; 1570 } 1571 len_seen += ext_sglist[i].len; 1572 } 1573 } else { 1574 ext_sglist = &ext_entry; 1575 ext_sglist->addr = ctsio->ext_data_ptr; 1576 ext_sglist->len = ctsio->ext_data_len; 1577 ext_sg_entries = 1; 1578 ext_sg_start = 0; 1579 ext_offset = ctsio->ext_data_filled; 1580 } 1581 1582 if (ctsio->kern_sg_entries > 0) { 1583 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1584 kern_sg_entries = ctsio->kern_sg_entries; 1585 } else { 1586 kern_sglist = &kern_entry; 1587 kern_sglist->addr = ctsio->kern_data_ptr; 1588 kern_sglist->len = ctsio->kern_data_len; 1589 kern_sg_entries = 1; 1590 } 1591 1592 1593 kern_watermark = 0; 1594 ext_watermark = ext_offset; 1595 len_copied = 0; 1596 for (i = ext_sg_start, j = 0; 1597 i < ext_sg_entries && j < kern_sg_entries;) { 1598 uint8_t *ext_ptr, *kern_ptr; 1599 1600 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1601 kern_sglist[j].len - kern_watermark); 1602 1603 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1604 ext_ptr = ext_ptr + ext_watermark; 1605 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1606 /* 1607 * XXX KDM fix this! 1608 */ 1609 panic("need to implement bus address support"); 1610#if 0 1611 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1612#endif 1613 } else 1614 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1615 kern_ptr = kern_ptr + kern_watermark; 1616 1617 kern_watermark += len_to_copy; 1618 ext_watermark += len_to_copy; 1619 1620 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1621 CTL_FLAG_DATA_IN) { 1622 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1623 "bytes to user\n", len_to_copy)); 1624 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1625 "to %p\n", kern_ptr, ext_ptr)); 1626 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1627 ctl_set_internal_failure(ctsio, 1628 /*sks_valid*/ 0, 1629 /*retry_count*/ 0); 1630 goto bailout; 1631 } 1632 } else { 1633 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1634 "bytes from user\n", len_to_copy)); 1635 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1636 "to %p\n", ext_ptr, kern_ptr)); 1637 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1638 ctl_set_internal_failure(ctsio, 1639 /*sks_valid*/ 0, 1640 /*retry_count*/0); 1641 goto bailout; 1642 } 1643 } 1644 1645 len_copied += len_to_copy; 1646 1647 if (ext_sglist[i].len == ext_watermark) { 1648 i++; 1649 ext_watermark = 0; 1650 } 1651 1652 if (kern_sglist[j].len == kern_watermark) { 1653 j++; 1654 kern_watermark = 0; 1655 } 1656 } 1657 1658 ctsio->ext_data_filled += len_copied; 1659 1660 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1661 "kern_sg_entries: %d\n", ext_sg_entries, 1662 kern_sg_entries)); 1663 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1664 "kern_data_len = %d\n", ctsio->ext_data_len, 1665 ctsio->kern_data_len)); 1666 1667 1668 /* XXX KDM set residual?? */ 1669bailout: 1670 1671 if (ext_sglist_malloced != 0) 1672 free(ext_sglist, M_CTL); 1673 1674 return (CTL_RETVAL_COMPLETE); 1675} 1676 1677/* 1678 * Serialize a command that went down the "wrong" side, and so was sent to 1679 * this controller for execution. The logic is a little different than the 1680 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1681 * sent back to the other side, but in the success case, we execute the 1682 * command on this side (XFER mode) or tell the other side to execute it 1683 * (SER_ONLY mode). 1684 */ 1685static int 1686ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio, int have_lock) 1687{ 1688 struct ctl_softc *ctl_softc; 1689 union ctl_ha_msg msg_info; 1690 struct ctl_lun *lun; 1691 int retval = 0; 1692 uint32_t targ_lun; 1693 1694 ctl_softc = control_softc; 1695 if (have_lock == 0) 1696 mtx_lock(&ctl_softc->ctl_lock); 1697 1698 targ_lun = ctsio->io_hdr.nexus.targ_lun; 1699 if (ctsio->io_hdr.nexus.lun_map_fn != NULL) 1700 targ_lun = ctsio->io_hdr.nexus.lun_map_fn(ctsio->io_hdr.nexus.lun_map_arg, targ_lun); 1701 lun = ctl_softc->ctl_luns[targ_lun]; 1702 if (lun==NULL) 1703 { 1704 /* 1705 * Why isn't LUN defined? The other side wouldn't 1706 * send a cmd if the LUN is undefined. 1707 */ 1708 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1709 1710 /* "Logical unit not supported" */ 1711 ctl_set_sense_data(&msg_info.scsi.sense_data, 1712 lun, 1713 /*sense_format*/SSD_TYPE_NONE, 1714 /*current_error*/ 1, 1715 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1716 /*asc*/ 0x25, 1717 /*ascq*/ 0x00, 1718 SSD_ELEM_NONE); 1719 1720 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1721 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1722 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1723 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1724 msg_info.hdr.serializing_sc = NULL; 1725 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1726 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1727 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1728 } 1729 if (have_lock == 0) 1730 mtx_unlock(&ctl_softc->ctl_lock); 1731 return(1); 1732 1733 } 1734 1735 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1736 1737 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1738 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1739 ooa_links))) { 1740 case CTL_ACTION_BLOCK: 1741 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1742 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1743 blocked_links); 1744 break; 1745 case CTL_ACTION_PASS: 1746 case CTL_ACTION_SKIP: 1747 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1748 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1749 STAILQ_INSERT_TAIL(&ctl_softc->rtr_queue, 1750 &ctsio->io_hdr, links); 1751 } else { 1752 1753 /* send msg back to other side */ 1754 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1755 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1756 msg_info.hdr.msg_type = CTL_MSG_R2R; 1757#if 0 1758 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1759#endif 1760 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1761 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1762 } 1763 } 1764 break; 1765 case CTL_ACTION_OVERLAP: 1766 /* OVERLAPPED COMMANDS ATTEMPTED */ 1767 ctl_set_sense_data(&msg_info.scsi.sense_data, 1768 lun, 1769 /*sense_format*/SSD_TYPE_NONE, 1770 /*current_error*/ 1, 1771 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1772 /*asc*/ 0x4E, 1773 /*ascq*/ 0x00, 1774 SSD_ELEM_NONE); 1775 1776 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1777 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1778 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1779 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1780 msg_info.hdr.serializing_sc = NULL; 1781 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1782#if 0 1783 printf("BAD JUJU:Major Bummer Overlap\n"); 1784#endif 1785 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1786 retval = 1; 1787 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1788 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1789 } 1790 break; 1791 case CTL_ACTION_OVERLAP_TAG: 1792 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1793 ctl_set_sense_data(&msg_info.scsi.sense_data, 1794 lun, 1795 /*sense_format*/SSD_TYPE_NONE, 1796 /*current_error*/ 1, 1797 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1798 /*asc*/ 0x4D, 1799 /*ascq*/ ctsio->tag_num & 0xff, 1800 SSD_ELEM_NONE); 1801 1802 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1803 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1804 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1805 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1806 msg_info.hdr.serializing_sc = NULL; 1807 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1808#if 0 1809 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1810#endif 1811 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1812 retval = 1; 1813 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1814 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1815 } 1816 break; 1817 case CTL_ACTION_ERROR: 1818 default: 1819 /* "Internal target failure" */ 1820 ctl_set_sense_data(&msg_info.scsi.sense_data, 1821 lun, 1822 /*sense_format*/SSD_TYPE_NONE, 1823 /*current_error*/ 1, 1824 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1825 /*asc*/ 0x44, 1826 /*ascq*/ 0x00, 1827 SSD_ELEM_NONE); 1828 1829 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1830 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1831 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1832 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1833 msg_info.hdr.serializing_sc = NULL; 1834 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1835#if 0 1836 printf("BAD JUJU:Major Bummer HW Error\n"); 1837#endif 1838 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1839 retval = 1; 1840 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1841 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1842 } 1843 break; 1844 } 1845 if (have_lock == 0) 1846 mtx_unlock(&ctl_softc->ctl_lock); 1847 return (retval); 1848} 1849 1850static int 1851ctl_ioctl_submit_wait(union ctl_io *io) 1852{ 1853 struct ctl_fe_ioctl_params params; 1854 ctl_fe_ioctl_state last_state; 1855 int done, retval; 1856 1857 retval = 0; 1858 1859 bzero(¶ms, sizeof(params)); 1860 1861 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1862 cv_init(¶ms.sem, "ctlioccv"); 1863 params.state = CTL_IOCTL_INPROG; 1864 last_state = params.state; 1865 1866 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1867 1868 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1869 1870 /* This shouldn't happen */ 1871 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1872 return (retval); 1873 1874 done = 0; 1875 1876 do { 1877 mtx_lock(¶ms.ioctl_mtx); 1878 /* 1879 * Check the state here, and don't sleep if the state has 1880 * already changed (i.e. wakeup has already occured, but we 1881 * weren't waiting yet). 1882 */ 1883 if (params.state == last_state) { 1884 /* XXX KDM cv_wait_sig instead? */ 1885 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1886 } 1887 last_state = params.state; 1888 1889 switch (params.state) { 1890 case CTL_IOCTL_INPROG: 1891 /* Why did we wake up? */ 1892 /* XXX KDM error here? */ 1893 mtx_unlock(¶ms.ioctl_mtx); 1894 break; 1895 case CTL_IOCTL_DATAMOVE: 1896 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1897 1898 /* 1899 * change last_state back to INPROG to avoid 1900 * deadlock on subsequent data moves. 1901 */ 1902 params.state = last_state = CTL_IOCTL_INPROG; 1903 1904 mtx_unlock(¶ms.ioctl_mtx); 1905 ctl_ioctl_do_datamove(&io->scsiio); 1906 /* 1907 * Note that in some cases, most notably writes, 1908 * this will queue the I/O and call us back later. 1909 * In other cases, generally reads, this routine 1910 * will immediately call back and wake us up, 1911 * probably using our own context. 1912 */ 1913 io->scsiio.be_move_done(io); 1914 break; 1915 case CTL_IOCTL_DONE: 1916 mtx_unlock(¶ms.ioctl_mtx); 1917 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1918 done = 1; 1919 break; 1920 default: 1921 mtx_unlock(¶ms.ioctl_mtx); 1922 /* XXX KDM error here? */ 1923 break; 1924 } 1925 } while (done == 0); 1926 1927 mtx_destroy(¶ms.ioctl_mtx); 1928 cv_destroy(¶ms.sem); 1929 1930 return (CTL_RETVAL_COMPLETE); 1931} 1932 1933static void 1934ctl_ioctl_datamove(union ctl_io *io) 1935{ 1936 struct ctl_fe_ioctl_params *params; 1937 1938 params = (struct ctl_fe_ioctl_params *) 1939 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1940 1941 mtx_lock(¶ms->ioctl_mtx); 1942 params->state = CTL_IOCTL_DATAMOVE; 1943 cv_broadcast(¶ms->sem); 1944 mtx_unlock(¶ms->ioctl_mtx); 1945} 1946 1947static void 1948ctl_ioctl_done(union ctl_io *io) 1949{ 1950 struct ctl_fe_ioctl_params *params; 1951 1952 params = (struct ctl_fe_ioctl_params *) 1953 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1954 1955 mtx_lock(¶ms->ioctl_mtx); 1956 params->state = CTL_IOCTL_DONE; 1957 cv_broadcast(¶ms->sem); 1958 mtx_unlock(¶ms->ioctl_mtx); 1959} 1960 1961static void 1962ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 1963{ 1964 struct ctl_fe_ioctl_startstop_info *sd_info; 1965 1966 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 1967 1968 sd_info->hs_info.status = metatask->status; 1969 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 1970 sd_info->hs_info.luns_complete = 1971 metatask->taskinfo.startstop.luns_complete; 1972 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 1973 1974 cv_broadcast(&sd_info->sem); 1975} 1976 1977static void 1978ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 1979{ 1980 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 1981 1982 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 1983 1984 mtx_lock(fe_bbr_info->lock); 1985 fe_bbr_info->bbr_info->status = metatask->status; 1986 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 1987 fe_bbr_info->wakeup_done = 1; 1988 mtx_unlock(fe_bbr_info->lock); 1989 1990 cv_broadcast(&fe_bbr_info->sem); 1991} 1992 1993/* 1994 * Returns 0 for success, errno for failure. 1995 */ 1996static int 1997ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 1998 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 1999{ 2000 union ctl_io *io; 2001 int retval; 2002 2003 retval = 0; 2004 2005 mtx_assert(&control_softc->ctl_lock, MA_OWNED); 2006 2007 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2008 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2009 ooa_links)) { 2010 struct ctl_ooa_entry *entry; 2011 2012 /* 2013 * If we've got more than we can fit, just count the 2014 * remaining entries. 2015 */ 2016 if (*cur_fill_num >= ooa_hdr->alloc_num) 2017 continue; 2018 2019 entry = &kern_entries[*cur_fill_num]; 2020 2021 entry->tag_num = io->scsiio.tag_num; 2022 entry->lun_num = lun->lun; 2023#ifdef CTL_TIME_IO 2024 entry->start_bt = io->io_hdr.start_bt; 2025#endif 2026 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2027 entry->cdb_len = io->scsiio.cdb_len; 2028 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2029 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2030 2031 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2032 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2033 2034 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2035 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2036 2037 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2038 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2039 2040 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2041 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2042 } 2043 2044 return (retval); 2045} 2046 2047static void * 2048ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2049 size_t error_str_len) 2050{ 2051 void *kptr; 2052 2053 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2054 2055 if (copyin(user_addr, kptr, len) != 0) { 2056 snprintf(error_str, error_str_len, "Error copying %d bytes " 2057 "from user address %p to kernel address %p", len, 2058 user_addr, kptr); 2059 free(kptr, M_CTL); 2060 return (NULL); 2061 } 2062 2063 return (kptr); 2064} 2065 2066static void 2067ctl_free_args(int num_be_args, struct ctl_be_arg *be_args) 2068{ 2069 int i; 2070 2071 if (be_args == NULL) 2072 return; 2073 2074 for (i = 0; i < num_be_args; i++) { 2075 free(be_args[i].kname, M_CTL); 2076 free(be_args[i].kvalue, M_CTL); 2077 } 2078 2079 free(be_args, M_CTL); 2080} 2081 2082static struct ctl_be_arg * 2083ctl_copyin_args(int num_be_args, struct ctl_be_arg *be_args, 2084 char *error_str, size_t error_str_len) 2085{ 2086 struct ctl_be_arg *args; 2087 int i; 2088 2089 args = ctl_copyin_alloc(be_args, num_be_args * sizeof(*be_args), 2090 error_str, error_str_len); 2091 2092 if (args == NULL) 2093 goto bailout; 2094 2095 for (i = 0; i < num_be_args; i++) { 2096 args[i].kname = NULL; 2097 args[i].kvalue = NULL; 2098 } 2099 2100 for (i = 0; i < num_be_args; i++) { 2101 uint8_t *tmpptr; 2102 2103 args[i].kname = ctl_copyin_alloc(args[i].name, 2104 args[i].namelen, error_str, error_str_len); 2105 if (args[i].kname == NULL) 2106 goto bailout; 2107 2108 if (args[i].kname[args[i].namelen - 1] != '\0') { 2109 snprintf(error_str, error_str_len, "Argument %d " 2110 "name is not NUL-terminated", i); 2111 goto bailout; 2112 } 2113 2114 args[i].kvalue = NULL; 2115 2116 tmpptr = ctl_copyin_alloc(args[i].value, 2117 args[i].vallen, error_str, error_str_len); 2118 if (tmpptr == NULL) 2119 goto bailout; 2120 2121 args[i].kvalue = tmpptr; 2122 2123 if ((args[i].flags & CTL_BEARG_ASCII) 2124 && (tmpptr[args[i].vallen - 1] != '\0')) { 2125 snprintf(error_str, error_str_len, "Argument %d " 2126 "value is not NUL-terminated", i); 2127 goto bailout; 2128 } 2129 } 2130 2131 return (args); 2132bailout: 2133 2134 ctl_free_args(num_be_args, args); 2135 2136 return (NULL); 2137} 2138 2139/* 2140 * Escape characters that are illegal or not recommended in XML. 2141 */ 2142int 2143ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2144{ 2145 int retval; 2146 2147 retval = 0; 2148 2149 for (; *str; str++) { 2150 switch (*str) { 2151 case '&': 2152 retval = sbuf_printf(sb, "&"); 2153 break; 2154 case '>': 2155 retval = sbuf_printf(sb, ">"); 2156 break; 2157 case '<': 2158 retval = sbuf_printf(sb, "<"); 2159 break; 2160 default: 2161 retval = sbuf_putc(sb, *str); 2162 break; 2163 } 2164 2165 if (retval != 0) 2166 break; 2167 2168 } 2169 2170 return (retval); 2171} 2172 2173static int 2174ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2175 struct thread *td) 2176{ 2177 struct ctl_softc *softc; 2178 int retval; 2179 2180 softc = control_softc; 2181 2182 retval = 0; 2183 2184 switch (cmd) { 2185 case CTL_IO: { 2186 union ctl_io *io; 2187 void *pool_tmp; 2188 2189 /* 2190 * If we haven't been "enabled", don't allow any SCSI I/O 2191 * to this FETD. 2192 */ 2193 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2194 retval = EPERM; 2195 break; 2196 } 2197 2198 io = ctl_alloc_io(softc->ioctl_info.fe.ctl_pool_ref); 2199 if (io == NULL) { 2200 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2201 retval = ENOSPC; 2202 break; 2203 } 2204 2205 /* 2206 * Need to save the pool reference so it doesn't get 2207 * spammed by the user's ctl_io. 2208 */ 2209 pool_tmp = io->io_hdr.pool; 2210 2211 memcpy(io, (void *)addr, sizeof(*io)); 2212 2213 io->io_hdr.pool = pool_tmp; 2214 /* 2215 * No status yet, so make sure the status is set properly. 2216 */ 2217 io->io_hdr.status = CTL_STATUS_NONE; 2218 2219 /* 2220 * The user sets the initiator ID, target and LUN IDs. 2221 */ 2222 io->io_hdr.nexus.targ_port = softc->ioctl_info.fe.targ_port; 2223 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2224 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2225 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2226 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2227 2228 retval = ctl_ioctl_submit_wait(io); 2229 2230 if (retval != 0) { 2231 ctl_free_io(io); 2232 break; 2233 } 2234 2235 memcpy((void *)addr, io, sizeof(*io)); 2236 2237 /* return this to our pool */ 2238 ctl_free_io(io); 2239 2240 break; 2241 } 2242 case CTL_ENABLE_PORT: 2243 case CTL_DISABLE_PORT: 2244 case CTL_SET_PORT_WWNS: { 2245 struct ctl_frontend *fe; 2246 struct ctl_port_entry *entry; 2247 2248 entry = (struct ctl_port_entry *)addr; 2249 2250 mtx_lock(&softc->ctl_lock); 2251 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2252 int action, done; 2253 2254 action = 0; 2255 done = 0; 2256 2257 if ((entry->port_type == CTL_PORT_NONE) 2258 && (entry->targ_port == fe->targ_port)) { 2259 /* 2260 * If the user only wants to enable or 2261 * disable or set WWNs on a specific port, 2262 * do the operation and we're done. 2263 */ 2264 action = 1; 2265 done = 1; 2266 } else if (entry->port_type & fe->port_type) { 2267 /* 2268 * Compare the user's type mask with the 2269 * particular frontend type to see if we 2270 * have a match. 2271 */ 2272 action = 1; 2273 done = 0; 2274 2275 /* 2276 * Make sure the user isn't trying to set 2277 * WWNs on multiple ports at the same time. 2278 */ 2279 if (cmd == CTL_SET_PORT_WWNS) { 2280 printf("%s: Can't set WWNs on " 2281 "multiple ports\n", __func__); 2282 retval = EINVAL; 2283 break; 2284 } 2285 } 2286 if (action != 0) { 2287 /* 2288 * XXX KDM we have to drop the lock here, 2289 * because the online/offline operations 2290 * can potentially block. We need to 2291 * reference count the frontends so they 2292 * can't go away, 2293 */ 2294 mtx_unlock(&softc->ctl_lock); 2295 2296 if (cmd == CTL_ENABLE_PORT) { 2297 struct ctl_lun *lun; 2298 2299 STAILQ_FOREACH(lun, &softc->lun_list, 2300 links) { 2301 fe->lun_enable(fe->targ_lun_arg, 2302 lun->target, 2303 lun->lun); 2304 } 2305 2306 ctl_frontend_online(fe); 2307 } else if (cmd == CTL_DISABLE_PORT) { 2308 struct ctl_lun *lun; 2309 2310 ctl_frontend_offline(fe); 2311 2312 STAILQ_FOREACH(lun, &softc->lun_list, 2313 links) { 2314 fe->lun_disable( 2315 fe->targ_lun_arg, 2316 lun->target, 2317 lun->lun); 2318 } 2319 } 2320 2321 mtx_lock(&softc->ctl_lock); 2322 2323 if (cmd == CTL_SET_PORT_WWNS) 2324 ctl_frontend_set_wwns(fe, 2325 (entry->flags & CTL_PORT_WWNN_VALID) ? 2326 1 : 0, entry->wwnn, 2327 (entry->flags & CTL_PORT_WWPN_VALID) ? 2328 1 : 0, entry->wwpn); 2329 } 2330 if (done != 0) 2331 break; 2332 } 2333 mtx_unlock(&softc->ctl_lock); 2334 break; 2335 } 2336 case CTL_GET_PORT_LIST: { 2337 struct ctl_frontend *fe; 2338 struct ctl_port_list *list; 2339 int i; 2340 2341 list = (struct ctl_port_list *)addr; 2342 2343 if (list->alloc_len != (list->alloc_num * 2344 sizeof(struct ctl_port_entry))) { 2345 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2346 "alloc_num %u * sizeof(struct ctl_port_entry) " 2347 "%zu\n", __func__, list->alloc_len, 2348 list->alloc_num, sizeof(struct ctl_port_entry)); 2349 retval = EINVAL; 2350 break; 2351 } 2352 list->fill_len = 0; 2353 list->fill_num = 0; 2354 list->dropped_num = 0; 2355 i = 0; 2356 mtx_lock(&softc->ctl_lock); 2357 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2358 struct ctl_port_entry entry, *list_entry; 2359 2360 if (list->fill_num >= list->alloc_num) { 2361 list->dropped_num++; 2362 continue; 2363 } 2364 2365 entry.port_type = fe->port_type; 2366 strlcpy(entry.port_name, fe->port_name, 2367 sizeof(entry.port_name)); 2368 entry.targ_port = fe->targ_port; 2369 entry.physical_port = fe->physical_port; 2370 entry.virtual_port = fe->virtual_port; 2371 entry.wwnn = fe->wwnn; 2372 entry.wwpn = fe->wwpn; 2373 if (fe->status & CTL_PORT_STATUS_ONLINE) 2374 entry.online = 1; 2375 else 2376 entry.online = 0; 2377 2378 list_entry = &list->entries[i]; 2379 2380 retval = copyout(&entry, list_entry, sizeof(entry)); 2381 if (retval != 0) { 2382 printf("%s: CTL_GET_PORT_LIST: copyout " 2383 "returned %d\n", __func__, retval); 2384 break; 2385 } 2386 i++; 2387 list->fill_num++; 2388 list->fill_len += sizeof(entry); 2389 } 2390 mtx_unlock(&softc->ctl_lock); 2391 2392 /* 2393 * If this is non-zero, we had a copyout fault, so there's 2394 * probably no point in attempting to set the status inside 2395 * the structure. 2396 */ 2397 if (retval != 0) 2398 break; 2399 2400 if (list->dropped_num > 0) 2401 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2402 else 2403 list->status = CTL_PORT_LIST_OK; 2404 break; 2405 } 2406 case CTL_DUMP_OOA: { 2407 struct ctl_lun *lun; 2408 union ctl_io *io; 2409 char printbuf[128]; 2410 struct sbuf sb; 2411 2412 mtx_lock(&softc->ctl_lock); 2413 printf("Dumping OOA queues:\n"); 2414 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2415 for (io = (union ctl_io *)TAILQ_FIRST( 2416 &lun->ooa_queue); io != NULL; 2417 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2418 ooa_links)) { 2419 sbuf_new(&sb, printbuf, sizeof(printbuf), 2420 SBUF_FIXEDLEN); 2421 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2422 (intmax_t)lun->lun, 2423 io->scsiio.tag_num, 2424 (io->io_hdr.flags & 2425 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2426 (io->io_hdr.flags & 2427 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2428 (io->io_hdr.flags & 2429 CTL_FLAG_ABORT) ? " ABORT" : "", 2430 (io->io_hdr.flags & 2431 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2432 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2433 sbuf_finish(&sb); 2434 printf("%s\n", sbuf_data(&sb)); 2435 } 2436 } 2437 printf("OOA queues dump done\n"); 2438 mtx_unlock(&softc->ctl_lock); 2439 break; 2440 } 2441 case CTL_GET_OOA: { 2442 struct ctl_lun *lun; 2443 struct ctl_ooa *ooa_hdr; 2444 struct ctl_ooa_entry *entries; 2445 uint32_t cur_fill_num; 2446 2447 ooa_hdr = (struct ctl_ooa *)addr; 2448 2449 if ((ooa_hdr->alloc_len == 0) 2450 || (ooa_hdr->alloc_num == 0)) { 2451 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2452 "must be non-zero\n", __func__, 2453 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2454 retval = EINVAL; 2455 break; 2456 } 2457 2458 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2459 sizeof(struct ctl_ooa_entry))) { 2460 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2461 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2462 __func__, ooa_hdr->alloc_len, 2463 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2464 retval = EINVAL; 2465 break; 2466 } 2467 2468 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2469 if (entries == NULL) { 2470 printf("%s: could not allocate %d bytes for OOA " 2471 "dump\n", __func__, ooa_hdr->alloc_len); 2472 retval = ENOMEM; 2473 break; 2474 } 2475 2476 mtx_lock(&softc->ctl_lock); 2477 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2478 && ((ooa_hdr->lun_num > CTL_MAX_LUNS) 2479 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2480 mtx_unlock(&softc->ctl_lock); 2481 free(entries, M_CTL); 2482 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2483 __func__, (uintmax_t)ooa_hdr->lun_num); 2484 retval = EINVAL; 2485 break; 2486 } 2487 2488 cur_fill_num = 0; 2489 2490 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2491 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2492 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2493 ooa_hdr, entries); 2494 if (retval != 0) 2495 break; 2496 } 2497 if (retval != 0) { 2498 mtx_unlock(&softc->ctl_lock); 2499 free(entries, M_CTL); 2500 break; 2501 } 2502 } else { 2503 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2504 2505 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2506 entries); 2507 } 2508 mtx_unlock(&softc->ctl_lock); 2509 2510 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2511 ooa_hdr->fill_len = ooa_hdr->fill_num * 2512 sizeof(struct ctl_ooa_entry); 2513 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2514 if (retval != 0) { 2515 printf("%s: error copying out %d bytes for OOA dump\n", 2516 __func__, ooa_hdr->fill_len); 2517 } 2518 2519 getbintime(&ooa_hdr->cur_bt); 2520 2521 if (cur_fill_num > ooa_hdr->alloc_num) { 2522 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2523 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2524 } else { 2525 ooa_hdr->dropped_num = 0; 2526 ooa_hdr->status = CTL_OOA_OK; 2527 } 2528 2529 free(entries, M_CTL); 2530 break; 2531 } 2532 case CTL_CHECK_OOA: { 2533 union ctl_io *io; 2534 struct ctl_lun *lun; 2535 struct ctl_ooa_info *ooa_info; 2536 2537 2538 ooa_info = (struct ctl_ooa_info *)addr; 2539 2540 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2541 ooa_info->status = CTL_OOA_INVALID_LUN; 2542 break; 2543 } 2544 mtx_lock(&softc->ctl_lock); 2545 lun = softc->ctl_luns[ooa_info->lun_id]; 2546 if (lun == NULL) { 2547 mtx_unlock(&softc->ctl_lock); 2548 ooa_info->status = CTL_OOA_INVALID_LUN; 2549 break; 2550 } 2551 2552 ooa_info->num_entries = 0; 2553 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2554 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2555 &io->io_hdr, ooa_links)) { 2556 ooa_info->num_entries++; 2557 } 2558 2559 mtx_unlock(&softc->ctl_lock); 2560 ooa_info->status = CTL_OOA_SUCCESS; 2561 2562 break; 2563 } 2564 case CTL_HARD_START: 2565 case CTL_HARD_STOP: { 2566 struct ctl_fe_ioctl_startstop_info ss_info; 2567 struct cfi_metatask *metatask; 2568 struct mtx hs_mtx; 2569 2570 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2571 2572 cv_init(&ss_info.sem, "hard start/stop cv" ); 2573 2574 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2575 if (metatask == NULL) { 2576 retval = ENOMEM; 2577 mtx_destroy(&hs_mtx); 2578 break; 2579 } 2580 2581 if (cmd == CTL_HARD_START) 2582 metatask->tasktype = CFI_TASK_STARTUP; 2583 else 2584 metatask->tasktype = CFI_TASK_SHUTDOWN; 2585 2586 metatask->callback = ctl_ioctl_hard_startstop_callback; 2587 metatask->callback_arg = &ss_info; 2588 2589 cfi_action(metatask); 2590 2591 /* Wait for the callback */ 2592 mtx_lock(&hs_mtx); 2593 cv_wait_sig(&ss_info.sem, &hs_mtx); 2594 mtx_unlock(&hs_mtx); 2595 2596 /* 2597 * All information has been copied from the metatask by the 2598 * time cv_broadcast() is called, so we free the metatask here. 2599 */ 2600 cfi_free_metatask(metatask); 2601 2602 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2603 2604 mtx_destroy(&hs_mtx); 2605 break; 2606 } 2607 case CTL_BBRREAD: { 2608 struct ctl_bbrread_info *bbr_info; 2609 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2610 struct mtx bbr_mtx; 2611 struct cfi_metatask *metatask; 2612 2613 bbr_info = (struct ctl_bbrread_info *)addr; 2614 2615 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2616 2617 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2618 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2619 2620 fe_bbr_info.bbr_info = bbr_info; 2621 fe_bbr_info.lock = &bbr_mtx; 2622 2623 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2624 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2625 2626 if (metatask == NULL) { 2627 mtx_destroy(&bbr_mtx); 2628 cv_destroy(&fe_bbr_info.sem); 2629 retval = ENOMEM; 2630 break; 2631 } 2632 metatask->tasktype = CFI_TASK_BBRREAD; 2633 metatask->callback = ctl_ioctl_bbrread_callback; 2634 metatask->callback_arg = &fe_bbr_info; 2635 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2636 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2637 metatask->taskinfo.bbrread.len = bbr_info->len; 2638 2639 cfi_action(metatask); 2640 2641 mtx_lock(&bbr_mtx); 2642 while (fe_bbr_info.wakeup_done == 0) 2643 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2644 mtx_unlock(&bbr_mtx); 2645 2646 bbr_info->status = metatask->status; 2647 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2648 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2649 memcpy(&bbr_info->sense_data, 2650 &metatask->taskinfo.bbrread.sense_data, 2651 ctl_min(sizeof(bbr_info->sense_data), 2652 sizeof(metatask->taskinfo.bbrread.sense_data))); 2653 2654 cfi_free_metatask(metatask); 2655 2656 mtx_destroy(&bbr_mtx); 2657 cv_destroy(&fe_bbr_info.sem); 2658 2659 break; 2660 } 2661 case CTL_DELAY_IO: { 2662 struct ctl_io_delay_info *delay_info; 2663#ifdef CTL_IO_DELAY 2664 struct ctl_lun *lun; 2665#endif /* CTL_IO_DELAY */ 2666 2667 delay_info = (struct ctl_io_delay_info *)addr; 2668 2669#ifdef CTL_IO_DELAY 2670 mtx_lock(&softc->ctl_lock); 2671 2672 if ((delay_info->lun_id > CTL_MAX_LUNS) 2673 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2674 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2675 } else { 2676 lun = softc->ctl_luns[delay_info->lun_id]; 2677 2678 delay_info->status = CTL_DELAY_STATUS_OK; 2679 2680 switch (delay_info->delay_type) { 2681 case CTL_DELAY_TYPE_CONT: 2682 break; 2683 case CTL_DELAY_TYPE_ONESHOT: 2684 break; 2685 default: 2686 delay_info->status = 2687 CTL_DELAY_STATUS_INVALID_TYPE; 2688 break; 2689 } 2690 2691 switch (delay_info->delay_loc) { 2692 case CTL_DELAY_LOC_DATAMOVE: 2693 lun->delay_info.datamove_type = 2694 delay_info->delay_type; 2695 lun->delay_info.datamove_delay = 2696 delay_info->delay_secs; 2697 break; 2698 case CTL_DELAY_LOC_DONE: 2699 lun->delay_info.done_type = 2700 delay_info->delay_type; 2701 lun->delay_info.done_delay = 2702 delay_info->delay_secs; 2703 break; 2704 default: 2705 delay_info->status = 2706 CTL_DELAY_STATUS_INVALID_LOC; 2707 break; 2708 } 2709 } 2710 2711 mtx_unlock(&softc->ctl_lock); 2712#else 2713 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2714#endif /* CTL_IO_DELAY */ 2715 break; 2716 } 2717 case CTL_REALSYNC_SET: { 2718 int *syncstate; 2719 2720 syncstate = (int *)addr; 2721 2722 mtx_lock(&softc->ctl_lock); 2723 switch (*syncstate) { 2724 case 0: 2725 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2726 break; 2727 case 1: 2728 softc->flags |= CTL_FLAG_REAL_SYNC; 2729 break; 2730 default: 2731 retval = EINVAL; 2732 break; 2733 } 2734 mtx_unlock(&softc->ctl_lock); 2735 break; 2736 } 2737 case CTL_REALSYNC_GET: { 2738 int *syncstate; 2739 2740 syncstate = (int*)addr; 2741 2742 mtx_lock(&softc->ctl_lock); 2743 if (softc->flags & CTL_FLAG_REAL_SYNC) 2744 *syncstate = 1; 2745 else 2746 *syncstate = 0; 2747 mtx_unlock(&softc->ctl_lock); 2748 2749 break; 2750 } 2751 case CTL_SETSYNC: 2752 case CTL_GETSYNC: { 2753 struct ctl_sync_info *sync_info; 2754 struct ctl_lun *lun; 2755 2756 sync_info = (struct ctl_sync_info *)addr; 2757 2758 mtx_lock(&softc->ctl_lock); 2759 lun = softc->ctl_luns[sync_info->lun_id]; 2760 if (lun == NULL) { 2761 mtx_unlock(&softc->ctl_lock); 2762 sync_info->status = CTL_GS_SYNC_NO_LUN; 2763 } 2764 /* 2765 * Get or set the sync interval. We're not bounds checking 2766 * in the set case, hopefully the user won't do something 2767 * silly. 2768 */ 2769 if (cmd == CTL_GETSYNC) 2770 sync_info->sync_interval = lun->sync_interval; 2771 else 2772 lun->sync_interval = sync_info->sync_interval; 2773 2774 mtx_unlock(&softc->ctl_lock); 2775 2776 sync_info->status = CTL_GS_SYNC_OK; 2777 2778 break; 2779 } 2780 case CTL_GETSTATS: { 2781 struct ctl_stats *stats; 2782 struct ctl_lun *lun; 2783 int i; 2784 2785 stats = (struct ctl_stats *)addr; 2786 2787 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2788 stats->alloc_len) { 2789 stats->status = CTL_SS_NEED_MORE_SPACE; 2790 stats->num_luns = softc->num_luns; 2791 break; 2792 } 2793 /* 2794 * XXX KDM no locking here. If the LUN list changes, 2795 * things can blow up. 2796 */ 2797 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2798 i++, lun = STAILQ_NEXT(lun, links)) { 2799 retval = copyout(&lun->stats, &stats->lun_stats[i], 2800 sizeof(lun->stats)); 2801 if (retval != 0) 2802 break; 2803 } 2804 stats->num_luns = softc->num_luns; 2805 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2806 softc->num_luns; 2807 stats->status = CTL_SS_OK; 2808#ifdef CTL_TIME_IO 2809 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2810#else 2811 stats->flags = CTL_STATS_FLAG_NONE; 2812#endif 2813 getnanouptime(&stats->timestamp); 2814 break; 2815 } 2816 case CTL_ERROR_INJECT: { 2817 struct ctl_error_desc *err_desc, *new_err_desc; 2818 struct ctl_lun *lun; 2819 2820 err_desc = (struct ctl_error_desc *)addr; 2821 2822 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2823 M_WAITOK | M_ZERO); 2824 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2825 2826 mtx_lock(&softc->ctl_lock); 2827 lun = softc->ctl_luns[err_desc->lun_id]; 2828 if (lun == NULL) { 2829 mtx_unlock(&softc->ctl_lock); 2830 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2831 __func__, (uintmax_t)err_desc->lun_id); 2832 retval = EINVAL; 2833 break; 2834 } 2835 2836 /* 2837 * We could do some checking here to verify the validity 2838 * of the request, but given the complexity of error 2839 * injection requests, the checking logic would be fairly 2840 * complex. 2841 * 2842 * For now, if the request is invalid, it just won't get 2843 * executed and might get deleted. 2844 */ 2845 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2846 2847 /* 2848 * XXX KDM check to make sure the serial number is unique, 2849 * in case we somehow manage to wrap. That shouldn't 2850 * happen for a very long time, but it's the right thing to 2851 * do. 2852 */ 2853 new_err_desc->serial = lun->error_serial; 2854 err_desc->serial = lun->error_serial; 2855 lun->error_serial++; 2856 2857 mtx_unlock(&softc->ctl_lock); 2858 break; 2859 } 2860 case CTL_ERROR_INJECT_DELETE: { 2861 struct ctl_error_desc *delete_desc, *desc, *desc2; 2862 struct ctl_lun *lun; 2863 int delete_done; 2864 2865 delete_desc = (struct ctl_error_desc *)addr; 2866 delete_done = 0; 2867 2868 mtx_lock(&softc->ctl_lock); 2869 lun = softc->ctl_luns[delete_desc->lun_id]; 2870 if (lun == NULL) { 2871 mtx_unlock(&softc->ctl_lock); 2872 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2873 __func__, (uintmax_t)delete_desc->lun_id); 2874 retval = EINVAL; 2875 break; 2876 } 2877 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2878 if (desc->serial != delete_desc->serial) 2879 continue; 2880 2881 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2882 links); 2883 free(desc, M_CTL); 2884 delete_done = 1; 2885 } 2886 mtx_unlock(&softc->ctl_lock); 2887 if (delete_done == 0) { 2888 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2889 "error serial %ju on LUN %u\n", __func__, 2890 delete_desc->serial, delete_desc->lun_id); 2891 retval = EINVAL; 2892 break; 2893 } 2894 break; 2895 } 2896 case CTL_DUMP_STRUCTS: { 2897 int i, j, k; 2898 struct ctl_frontend *fe; 2899 2900 printf("CTL IID to WWPN map start:\n"); 2901 for (i = 0; i < CTL_MAX_PORTS; i++) { 2902 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2903 if (softc->wwpn_iid[i][j].in_use == 0) 2904 continue; 2905 2906 printf("port %d iid %u WWPN %#jx\n", 2907 softc->wwpn_iid[i][j].port, 2908 softc->wwpn_iid[i][j].iid, 2909 (uintmax_t)softc->wwpn_iid[i][j].wwpn); 2910 } 2911 } 2912 printf("CTL IID to WWPN map end\n"); 2913 printf("CTL Persistent Reservation information start:\n"); 2914 for (i = 0; i < CTL_MAX_LUNS; i++) { 2915 struct ctl_lun *lun; 2916 2917 lun = softc->ctl_luns[i]; 2918 2919 if ((lun == NULL) 2920 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2921 continue; 2922 2923 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2924 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2925 if (lun->per_res[j+k].registered == 0) 2926 continue; 2927 printf("LUN %d port %d iid %d key " 2928 "%#jx\n", i, j, k, 2929 (uintmax_t)scsi_8btou64( 2930 lun->per_res[j+k].res_key.key)); 2931 } 2932 } 2933 } 2934 printf("CTL Persistent Reservation information end\n"); 2935 printf("CTL Frontends:\n"); 2936 /* 2937 * XXX KDM calling this without a lock. We'd likely want 2938 * to drop the lock before calling the frontend's dump 2939 * routine anyway. 2940 */ 2941 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2942 printf("Frontend %s Type %u pport %d vport %d WWNN " 2943 "%#jx WWPN %#jx\n", fe->port_name, fe->port_type, 2944 fe->physical_port, fe->virtual_port, 2945 (uintmax_t)fe->wwnn, (uintmax_t)fe->wwpn); 2946 2947 /* 2948 * Frontends are not required to support the dump 2949 * routine. 2950 */ 2951 if (fe->fe_dump == NULL) 2952 continue; 2953 2954 fe->fe_dump(); 2955 } 2956 printf("CTL Frontend information end\n"); 2957 break; 2958 } 2959 case CTL_LUN_REQ: { 2960 struct ctl_lun_req *lun_req; 2961 struct ctl_backend_driver *backend; 2962 2963 lun_req = (struct ctl_lun_req *)addr; 2964 2965 backend = ctl_backend_find(lun_req->backend); 2966 if (backend == NULL) { 2967 lun_req->status = CTL_LUN_ERROR; 2968 snprintf(lun_req->error_str, 2969 sizeof(lun_req->error_str), 2970 "Backend \"%s\" not found.", 2971 lun_req->backend); 2972 break; 2973 } 2974 if (lun_req->num_be_args > 0) { 2975 lun_req->kern_be_args = ctl_copyin_args( 2976 lun_req->num_be_args, 2977 lun_req->be_args, 2978 lun_req->error_str, 2979 sizeof(lun_req->error_str)); 2980 if (lun_req->kern_be_args == NULL) { 2981 lun_req->status = CTL_LUN_ERROR; 2982 break; 2983 } 2984 } 2985 2986 retval = backend->ioctl(dev, cmd, addr, flag, td); 2987 2988 if (lun_req->num_be_args > 0) { 2989 ctl_free_args(lun_req->num_be_args, 2990 lun_req->kern_be_args); 2991 } 2992 break; 2993 } 2994 case CTL_LUN_LIST: { 2995 struct sbuf *sb; 2996 struct ctl_lun *lun; 2997 struct ctl_lun_list *list; 2998 struct ctl_be_lun_option *opt; 2999 3000 list = (struct ctl_lun_list *)addr; 3001 3002 /* 3003 * Allocate a fixed length sbuf here, based on the length 3004 * of the user's buffer. We could allocate an auto-extending 3005 * buffer, and then tell the user how much larger our 3006 * amount of data is than his buffer, but that presents 3007 * some problems: 3008 * 3009 * 1. The sbuf(9) routines use a blocking malloc, and so 3010 * we can't hold a lock while calling them with an 3011 * auto-extending buffer. 3012 * 3013 * 2. There is not currently a LUN reference counting 3014 * mechanism, outside of outstanding transactions on 3015 * the LUN's OOA queue. So a LUN could go away on us 3016 * while we're getting the LUN number, backend-specific 3017 * information, etc. Thus, given the way things 3018 * currently work, we need to hold the CTL lock while 3019 * grabbing LUN information. 3020 * 3021 * So, from the user's standpoint, the best thing to do is 3022 * allocate what he thinks is a reasonable buffer length, 3023 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3024 * double the buffer length and try again. (And repeat 3025 * that until he succeeds.) 3026 */ 3027 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3028 if (sb == NULL) { 3029 list->status = CTL_LUN_LIST_ERROR; 3030 snprintf(list->error_str, sizeof(list->error_str), 3031 "Unable to allocate %d bytes for LUN list", 3032 list->alloc_len); 3033 break; 3034 } 3035 3036 sbuf_printf(sb, "<ctllunlist>\n"); 3037 3038 mtx_lock(&softc->ctl_lock); 3039 3040 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3041 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3042 (uintmax_t)lun->lun); 3043 3044 /* 3045 * Bail out as soon as we see that we've overfilled 3046 * the buffer. 3047 */ 3048 if (retval != 0) 3049 break; 3050 3051 retval = sbuf_printf(sb, "<backend_type>%s" 3052 "</backend_type>\n", 3053 (lun->backend == NULL) ? "none" : 3054 lun->backend->name); 3055 3056 if (retval != 0) 3057 break; 3058 3059 retval = sbuf_printf(sb, "<lun_type>%d</lun_type>\n", 3060 lun->be_lun->lun_type); 3061 3062 if (retval != 0) 3063 break; 3064 3065 if (lun->backend == NULL) { 3066 retval = sbuf_printf(sb, "</lun>\n"); 3067 if (retval != 0) 3068 break; 3069 continue; 3070 } 3071 3072 retval = sbuf_printf(sb, "<size>%ju</size>\n", 3073 (lun->be_lun->maxlba > 0) ? 3074 lun->be_lun->maxlba + 1 : 0); 3075 3076 if (retval != 0) 3077 break; 3078 3079 retval = sbuf_printf(sb, "<blocksize>%u</blocksize>\n", 3080 lun->be_lun->blocksize); 3081 3082 if (retval != 0) 3083 break; 3084 3085 retval = sbuf_printf(sb, "<serial_number>"); 3086 3087 if (retval != 0) 3088 break; 3089 3090 retval = ctl_sbuf_printf_esc(sb, 3091 lun->be_lun->serial_num); 3092 3093 if (retval != 0) 3094 break; 3095 3096 retval = sbuf_printf(sb, "</serial_number>\n"); 3097 3098 if (retval != 0) 3099 break; 3100 3101 retval = sbuf_printf(sb, "<device_id>"); 3102 3103 if (retval != 0) 3104 break; 3105 3106 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3107 3108 if (retval != 0) 3109 break; 3110 3111 retval = sbuf_printf(sb, "</device_id>\n"); 3112 3113 if (retval != 0) 3114 break; 3115 3116 if (lun->backend->lun_info != NULL) { 3117 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3118 if (retval != 0) 3119 break; 3120 } 3121 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3122 retval = sbuf_printf(sb, "<%s>%s</%s>", opt->name, opt->value, opt->name); 3123 if (retval != 0) 3124 break; 3125 } 3126 3127 retval = sbuf_printf(sb, "</lun>\n"); 3128 3129 if (retval != 0) 3130 break; 3131 } 3132 mtx_unlock(&softc->ctl_lock); 3133 3134 if ((retval != 0) 3135 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3136 retval = 0; 3137 sbuf_delete(sb); 3138 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3139 snprintf(list->error_str, sizeof(list->error_str), 3140 "Out of space, %d bytes is too small", 3141 list->alloc_len); 3142 break; 3143 } 3144 3145 sbuf_finish(sb); 3146 3147 retval = copyout(sbuf_data(sb), list->lun_xml, 3148 sbuf_len(sb) + 1); 3149 3150 list->fill_len = sbuf_len(sb) + 1; 3151 list->status = CTL_LUN_LIST_OK; 3152 sbuf_delete(sb); 3153 break; 3154 } 3155 case CTL_ISCSI: { 3156 struct ctl_iscsi *ci; 3157 struct ctl_frontend *fe; 3158 3159 ci = (struct ctl_iscsi *)addr; 3160 3161 mtx_lock(&softc->ctl_lock); 3162 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3163 if (strcmp(fe->port_name, "iscsi") == 0) 3164 break; 3165 } 3166 mtx_unlock(&softc->ctl_lock); 3167 3168 if (fe == NULL) { 3169 ci->status = CTL_ISCSI_ERROR; 3170 snprintf(ci->error_str, sizeof(ci->error_str), "Backend \"iscsi\" not found."); 3171 break; 3172 } 3173 3174 retval = fe->ioctl(dev, cmd, addr, flag, td); 3175 break; 3176 } 3177 default: { 3178 /* XXX KDM should we fix this? */ 3179#if 0 3180 struct ctl_backend_driver *backend; 3181 unsigned int type; 3182 int found; 3183 3184 found = 0; 3185 3186 /* 3187 * We encode the backend type as the ioctl type for backend 3188 * ioctls. So parse it out here, and then search for a 3189 * backend of this type. 3190 */ 3191 type = _IOC_TYPE(cmd); 3192 3193 STAILQ_FOREACH(backend, &softc->be_list, links) { 3194 if (backend->type == type) { 3195 found = 1; 3196 break; 3197 } 3198 } 3199 if (found == 0) { 3200 printf("ctl: unknown ioctl command %#lx or backend " 3201 "%d\n", cmd, type); 3202 retval = EINVAL; 3203 break; 3204 } 3205 retval = backend->ioctl(dev, cmd, addr, flag, td); 3206#endif 3207 retval = ENOTTY; 3208 break; 3209 } 3210 } 3211 return (retval); 3212} 3213 3214uint32_t 3215ctl_get_initindex(struct ctl_nexus *nexus) 3216{ 3217 if (nexus->targ_port < CTL_MAX_PORTS) 3218 return (nexus->initid.id + 3219 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3220 else 3221 return (nexus->initid.id + 3222 ((nexus->targ_port - CTL_MAX_PORTS) * 3223 CTL_MAX_INIT_PER_PORT)); 3224} 3225 3226uint32_t 3227ctl_get_resindex(struct ctl_nexus *nexus) 3228{ 3229 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3230} 3231 3232uint32_t 3233ctl_port_idx(int port_num) 3234{ 3235 if (port_num < CTL_MAX_PORTS) 3236 return(port_num); 3237 else 3238 return(port_num - CTL_MAX_PORTS); 3239} 3240 3241/* 3242 * Note: This only works for bitmask sizes that are at least 32 bits, and 3243 * that are a power of 2. 3244 */ 3245int 3246ctl_ffz(uint32_t *mask, uint32_t size) 3247{ 3248 uint32_t num_chunks, num_pieces; 3249 int i, j; 3250 3251 num_chunks = (size >> 5); 3252 if (num_chunks == 0) 3253 num_chunks++; 3254 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3255 3256 for (i = 0; i < num_chunks; i++) { 3257 for (j = 0; j < num_pieces; j++) { 3258 if ((mask[i] & (1 << j)) == 0) 3259 return ((i << 5) + j); 3260 } 3261 } 3262 3263 return (-1); 3264} 3265 3266int 3267ctl_set_mask(uint32_t *mask, uint32_t bit) 3268{ 3269 uint32_t chunk, piece; 3270 3271 chunk = bit >> 5; 3272 piece = bit % (sizeof(uint32_t) * 8); 3273 3274 if ((mask[chunk] & (1 << piece)) != 0) 3275 return (-1); 3276 else 3277 mask[chunk] |= (1 << piece); 3278 3279 return (0); 3280} 3281 3282int 3283ctl_clear_mask(uint32_t *mask, uint32_t bit) 3284{ 3285 uint32_t chunk, piece; 3286 3287 chunk = bit >> 5; 3288 piece = bit % (sizeof(uint32_t) * 8); 3289 3290 if ((mask[chunk] & (1 << piece)) == 0) 3291 return (-1); 3292 else 3293 mask[chunk] &= ~(1 << piece); 3294 3295 return (0); 3296} 3297 3298int 3299ctl_is_set(uint32_t *mask, uint32_t bit) 3300{ 3301 uint32_t chunk, piece; 3302 3303 chunk = bit >> 5; 3304 piece = bit % (sizeof(uint32_t) * 8); 3305 3306 if ((mask[chunk] & (1 << piece)) == 0) 3307 return (0); 3308 else 3309 return (1); 3310} 3311 3312#ifdef unused 3313/* 3314 * The bus, target and lun are optional, they can be filled in later. 3315 * can_wait is used to determine whether we can wait on the malloc or not. 3316 */ 3317union ctl_io* 3318ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3319 uint32_t targ_lun, int can_wait) 3320{ 3321 union ctl_io *io; 3322 3323 if (can_wait) 3324 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3325 else 3326 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3327 3328 if (io != NULL) { 3329 io->io_hdr.io_type = io_type; 3330 io->io_hdr.targ_port = targ_port; 3331 /* 3332 * XXX KDM this needs to change/go away. We need to move 3333 * to a preallocated pool of ctl_scsiio structures. 3334 */ 3335 io->io_hdr.nexus.targ_target.id = targ_target; 3336 io->io_hdr.nexus.targ_lun = targ_lun; 3337 } 3338 3339 return (io); 3340} 3341 3342void 3343ctl_kfree_io(union ctl_io *io) 3344{ 3345 free(io, M_CTL); 3346} 3347#endif /* unused */ 3348 3349/* 3350 * ctl_softc, pool_type, total_ctl_io are passed in. 3351 * npool is passed out. 3352 */ 3353int 3354ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3355 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3356{ 3357 uint32_t i; 3358 union ctl_io *cur_io, *next_io; 3359 struct ctl_io_pool *pool; 3360 int retval; 3361 3362 retval = 0; 3363 3364 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3365 M_NOWAIT | M_ZERO); 3366 if (pool == NULL) { 3367 retval = ENOMEM; 3368 goto bailout; 3369 } 3370 3371 pool->type = pool_type; 3372 pool->ctl_softc = ctl_softc; 3373 3374 mtx_lock(&ctl_softc->pool_lock); 3375 pool->id = ctl_softc->cur_pool_id++; 3376 mtx_unlock(&ctl_softc->pool_lock); 3377 3378 pool->flags = CTL_POOL_FLAG_NONE; 3379 pool->refcount = 1; /* Reference for validity. */ 3380 STAILQ_INIT(&pool->free_queue); 3381 3382 /* 3383 * XXX KDM other options here: 3384 * - allocate a page at a time 3385 * - allocate one big chunk of memory. 3386 * Page allocation might work well, but would take a little more 3387 * tracking. 3388 */ 3389 for (i = 0; i < total_ctl_io; i++) { 3390 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTL, 3391 M_NOWAIT); 3392 if (cur_io == NULL) { 3393 retval = ENOMEM; 3394 break; 3395 } 3396 cur_io->io_hdr.pool = pool; 3397 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3398 pool->total_ctl_io++; 3399 pool->free_ctl_io++; 3400 } 3401 3402 if (retval != 0) { 3403 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3404 cur_io != NULL; cur_io = next_io) { 3405 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3406 links); 3407 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3408 ctl_io_hdr, links); 3409 free(cur_io, M_CTL); 3410 } 3411 3412 free(pool, M_CTL); 3413 goto bailout; 3414 } 3415 mtx_lock(&ctl_softc->pool_lock); 3416 ctl_softc->num_pools++; 3417 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3418 /* 3419 * Increment our usage count if this is an external consumer, so we 3420 * can't get unloaded until the external consumer (most likely a 3421 * FETD) unloads and frees his pool. 3422 * 3423 * XXX KDM will this increment the caller's module use count, or 3424 * mine? 3425 */ 3426#if 0 3427 if ((pool_type != CTL_POOL_EMERGENCY) 3428 && (pool_type != CTL_POOL_INTERNAL) 3429 && (pool_type != CTL_POOL_IOCTL) 3430 && (pool_type != CTL_POOL_4OTHERSC)) 3431 MOD_INC_USE_COUNT; 3432#endif 3433 3434 mtx_unlock(&ctl_softc->pool_lock); 3435 3436 *npool = pool; 3437 3438bailout: 3439 3440 return (retval); 3441} 3442 3443static int 3444ctl_pool_acquire(struct ctl_io_pool *pool) 3445{ 3446 3447 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3448 3449 if (pool->flags & CTL_POOL_FLAG_INVALID) 3450 return (EINVAL); 3451 3452 pool->refcount++; 3453 3454 return (0); 3455} 3456 3457static void 3458ctl_pool_release(struct ctl_io_pool *pool) 3459{ 3460 struct ctl_softc *ctl_softc = pool->ctl_softc; 3461 union ctl_io *io; 3462 3463 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3464 3465 if (--pool->refcount != 0) 3466 return; 3467 3468 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3469 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3470 links); 3471 free(io, M_CTL); 3472 } 3473 3474 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3475 ctl_softc->num_pools--; 3476 3477 /* 3478 * XXX KDM will this decrement the caller's usage count or mine? 3479 */ 3480#if 0 3481 if ((pool->type != CTL_POOL_EMERGENCY) 3482 && (pool->type != CTL_POOL_INTERNAL) 3483 && (pool->type != CTL_POOL_IOCTL)) 3484 MOD_DEC_USE_COUNT; 3485#endif 3486 3487 free(pool, M_CTL); 3488} 3489 3490void 3491ctl_pool_free(struct ctl_io_pool *pool) 3492{ 3493 struct ctl_softc *ctl_softc; 3494 3495 if (pool == NULL) 3496 return; 3497 3498 ctl_softc = pool->ctl_softc; 3499 mtx_lock(&ctl_softc->pool_lock); 3500 pool->flags |= CTL_POOL_FLAG_INVALID; 3501 ctl_pool_release(pool); 3502 mtx_unlock(&ctl_softc->pool_lock); 3503} 3504 3505/* 3506 * This routine does not block (except for spinlocks of course). 3507 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3508 * possible. 3509 */ 3510union ctl_io * 3511ctl_alloc_io(void *pool_ref) 3512{ 3513 union ctl_io *io; 3514 struct ctl_softc *ctl_softc; 3515 struct ctl_io_pool *pool, *npool; 3516 struct ctl_io_pool *emergency_pool; 3517 3518 pool = (struct ctl_io_pool *)pool_ref; 3519 3520 if (pool == NULL) { 3521 printf("%s: pool is NULL\n", __func__); 3522 return (NULL); 3523 } 3524 3525 emergency_pool = NULL; 3526 3527 ctl_softc = pool->ctl_softc; 3528 3529 mtx_lock(&ctl_softc->pool_lock); 3530 /* 3531 * First, try to get the io structure from the user's pool. 3532 */ 3533 if (ctl_pool_acquire(pool) == 0) { 3534 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3535 if (io != NULL) { 3536 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3537 pool->total_allocated++; 3538 pool->free_ctl_io--; 3539 mtx_unlock(&ctl_softc->pool_lock); 3540 return (io); 3541 } else 3542 ctl_pool_release(pool); 3543 } 3544 /* 3545 * If he doesn't have any io structures left, search for an 3546 * emergency pool and grab one from there. 3547 */ 3548 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3549 if (npool->type != CTL_POOL_EMERGENCY) 3550 continue; 3551 3552 if (ctl_pool_acquire(npool) != 0) 3553 continue; 3554 3555 emergency_pool = npool; 3556 3557 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3558 if (io != NULL) { 3559 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3560 npool->total_allocated++; 3561 npool->free_ctl_io--; 3562 mtx_unlock(&ctl_softc->pool_lock); 3563 return (io); 3564 } else 3565 ctl_pool_release(npool); 3566 } 3567 3568 /* Drop the spinlock before we malloc */ 3569 mtx_unlock(&ctl_softc->pool_lock); 3570 3571 /* 3572 * The emergency pool (if it exists) didn't have one, so try an 3573 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3574 */ 3575 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3576 if (io != NULL) { 3577 /* 3578 * If the emergency pool exists but is empty, add this 3579 * ctl_io to its list when it gets freed. 3580 */ 3581 if (emergency_pool != NULL) { 3582 mtx_lock(&ctl_softc->pool_lock); 3583 if (ctl_pool_acquire(emergency_pool) == 0) { 3584 io->io_hdr.pool = emergency_pool; 3585 emergency_pool->total_ctl_io++; 3586 /* 3587 * Need to bump this, otherwise 3588 * total_allocated and total_freed won't 3589 * match when we no longer have anything 3590 * outstanding. 3591 */ 3592 emergency_pool->total_allocated++; 3593 } 3594 mtx_unlock(&ctl_softc->pool_lock); 3595 } else 3596 io->io_hdr.pool = NULL; 3597 } 3598 3599 return (io); 3600} 3601 3602void 3603ctl_free_io(union ctl_io *io) 3604{ 3605 if (io == NULL) 3606 return; 3607 3608 /* 3609 * If this ctl_io has a pool, return it to that pool. 3610 */ 3611 if (io->io_hdr.pool != NULL) { 3612 struct ctl_io_pool *pool; 3613#if 0 3614 struct ctl_softc *ctl_softc; 3615 union ctl_io *tmp_io; 3616 unsigned long xflags; 3617 int i; 3618 3619 ctl_softc = control_softc; 3620#endif 3621 3622 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3623 3624 mtx_lock(&pool->ctl_softc->pool_lock); 3625#if 0 3626 save_flags(xflags); 3627 3628 for (i = 0, tmp_io = (union ctl_io *)STAILQ_FIRST( 3629 &ctl_softc->task_queue); tmp_io != NULL; i++, 3630 tmp_io = (union ctl_io *)STAILQ_NEXT(&tmp_io->io_hdr, 3631 links)) { 3632 if (tmp_io == io) { 3633 printf("%s: %p is still on the task queue!\n", 3634 __func__, tmp_io); 3635 printf("%s: (%d): type %d " 3636 "msg %d cdb %x iptl: " 3637 "%d:%d:%d:%d tag 0x%04x " 3638 "flg %#lx\n", 3639 __func__, i, 3640 tmp_io->io_hdr.io_type, 3641 tmp_io->io_hdr.msg_type, 3642 tmp_io->scsiio.cdb[0], 3643 tmp_io->io_hdr.nexus.initid.id, 3644 tmp_io->io_hdr.nexus.targ_port, 3645 tmp_io->io_hdr.nexus.targ_target.id, 3646 tmp_io->io_hdr.nexus.targ_lun, 3647 (tmp_io->io_hdr.io_type == 3648 CTL_IO_TASK) ? 3649 tmp_io->taskio.tag_num : 3650 tmp_io->scsiio.tag_num, 3651 xflags); 3652 panic("I/O still on the task queue!"); 3653 } 3654 } 3655#endif 3656 io->io_hdr.io_type = 0xff; 3657 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3658 pool->total_freed++; 3659 pool->free_ctl_io++; 3660 ctl_pool_release(pool); 3661 mtx_unlock(&pool->ctl_softc->pool_lock); 3662 } else { 3663 /* 3664 * Otherwise, just free it. We probably malloced it and 3665 * the emergency pool wasn't available. 3666 */ 3667 free(io, M_CTL); 3668 } 3669 3670} 3671 3672void 3673ctl_zero_io(union ctl_io *io) 3674{ 3675 void *pool_ref; 3676 3677 if (io == NULL) 3678 return; 3679 3680 /* 3681 * May need to preserve linked list pointers at some point too. 3682 */ 3683 pool_ref = io->io_hdr.pool; 3684 3685 memset(io, 0, sizeof(*io)); 3686 3687 io->io_hdr.pool = pool_ref; 3688} 3689 3690/* 3691 * This routine is currently used for internal copies of ctl_ios that need 3692 * to persist for some reason after we've already returned status to the 3693 * FETD. (Thus the flag set.) 3694 * 3695 * XXX XXX 3696 * Note that this makes a blind copy of all fields in the ctl_io, except 3697 * for the pool reference. This includes any memory that has been 3698 * allocated! That memory will no longer be valid after done has been 3699 * called, so this would be VERY DANGEROUS for command that actually does 3700 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3701 * start and stop commands, which don't transfer any data, so this is not a 3702 * problem. If it is used for anything else, the caller would also need to 3703 * allocate data buffer space and this routine would need to be modified to 3704 * copy the data buffer(s) as well. 3705 */ 3706void 3707ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3708{ 3709 void *pool_ref; 3710 3711 if ((src == NULL) 3712 || (dest == NULL)) 3713 return; 3714 3715 /* 3716 * May need to preserve linked list pointers at some point too. 3717 */ 3718 pool_ref = dest->io_hdr.pool; 3719 3720 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3721 3722 dest->io_hdr.pool = pool_ref; 3723 /* 3724 * We need to know that this is an internal copy, and doesn't need 3725 * to get passed back to the FETD that allocated it. 3726 */ 3727 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3728} 3729 3730#ifdef NEEDTOPORT 3731static void 3732ctl_update_power_subpage(struct copan_power_subpage *page) 3733{ 3734 int num_luns, num_partitions, config_type; 3735 struct ctl_softc *softc; 3736 cs_BOOL_t aor_present, shelf_50pct_power; 3737 cs_raidset_personality_t rs_type; 3738 int max_active_luns; 3739 3740 softc = control_softc; 3741 3742 /* subtract out the processor LUN */ 3743 num_luns = softc->num_luns - 1; 3744 /* 3745 * Default to 7 LUNs active, which was the only number we allowed 3746 * in the past. 3747 */ 3748 max_active_luns = 7; 3749 3750 num_partitions = config_GetRsPartitionInfo(); 3751 config_type = config_GetConfigType(); 3752 shelf_50pct_power = config_GetShelfPowerMode(); 3753 aor_present = config_IsAorRsPresent(); 3754 3755 rs_type = ddb_GetRsRaidType(1); 3756 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3757 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3758 EPRINT(0, "Unsupported RS type %d!", rs_type); 3759 } 3760 3761 3762 page->total_luns = num_luns; 3763 3764 switch (config_type) { 3765 case 40: 3766 /* 3767 * In a 40 drive configuration, it doesn't matter what DC 3768 * cards we have, whether we have AOR enabled or not, 3769 * partitioning or not, or what type of RAIDset we have. 3770 * In that scenario, we can power up every LUN we present 3771 * to the user. 3772 */ 3773 max_active_luns = num_luns; 3774 3775 break; 3776 case 64: 3777 if (shelf_50pct_power == CS_FALSE) { 3778 /* 25% power */ 3779 if (aor_present == CS_TRUE) { 3780 if (rs_type == 3781 CS_RAIDSET_PERSONALITY_RAID5) { 3782 max_active_luns = 7; 3783 } else if (rs_type == 3784 CS_RAIDSET_PERSONALITY_RAID1){ 3785 max_active_luns = 14; 3786 } else { 3787 /* XXX KDM now what?? */ 3788 } 3789 } else { 3790 if (rs_type == 3791 CS_RAIDSET_PERSONALITY_RAID5) { 3792 max_active_luns = 8; 3793 } else if (rs_type == 3794 CS_RAIDSET_PERSONALITY_RAID1){ 3795 max_active_luns = 16; 3796 } else { 3797 /* XXX KDM now what?? */ 3798 } 3799 } 3800 } else { 3801 /* 50% power */ 3802 /* 3803 * With 50% power in a 64 drive configuration, we 3804 * can power all LUNs we present. 3805 */ 3806 max_active_luns = num_luns; 3807 } 3808 break; 3809 case 112: 3810 if (shelf_50pct_power == CS_FALSE) { 3811 /* 25% power */ 3812 if (aor_present == CS_TRUE) { 3813 if (rs_type == 3814 CS_RAIDSET_PERSONALITY_RAID5) { 3815 max_active_luns = 7; 3816 } else if (rs_type == 3817 CS_RAIDSET_PERSONALITY_RAID1){ 3818 max_active_luns = 14; 3819 } else { 3820 /* XXX KDM now what?? */ 3821 } 3822 } else { 3823 if (rs_type == 3824 CS_RAIDSET_PERSONALITY_RAID5) { 3825 max_active_luns = 8; 3826 } else if (rs_type == 3827 CS_RAIDSET_PERSONALITY_RAID1){ 3828 max_active_luns = 16; 3829 } else { 3830 /* XXX KDM now what?? */ 3831 } 3832 } 3833 } else { 3834 /* 50% power */ 3835 if (aor_present == CS_TRUE) { 3836 if (rs_type == 3837 CS_RAIDSET_PERSONALITY_RAID5) { 3838 max_active_luns = 14; 3839 } else if (rs_type == 3840 CS_RAIDSET_PERSONALITY_RAID1){ 3841 /* 3842 * We're assuming here that disk 3843 * caching is enabled, and so we're 3844 * able to power up half of each 3845 * LUN, and cache all writes. 3846 */ 3847 max_active_luns = num_luns; 3848 } else { 3849 /* XXX KDM now what?? */ 3850 } 3851 } else { 3852 if (rs_type == 3853 CS_RAIDSET_PERSONALITY_RAID5) { 3854 max_active_luns = 15; 3855 } else if (rs_type == 3856 CS_RAIDSET_PERSONALITY_RAID1){ 3857 max_active_luns = 30; 3858 } else { 3859 /* XXX KDM now what?? */ 3860 } 3861 } 3862 } 3863 break; 3864 default: 3865 /* 3866 * In this case, we have an unknown configuration, so we 3867 * just use the default from above. 3868 */ 3869 break; 3870 } 3871 3872 page->max_active_luns = max_active_luns; 3873#if 0 3874 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 3875 page->total_luns, page->max_active_luns); 3876#endif 3877} 3878#endif /* NEEDTOPORT */ 3879 3880/* 3881 * This routine could be used in the future to load default and/or saved 3882 * mode page parameters for a particuar lun. 3883 */ 3884static int 3885ctl_init_page_index(struct ctl_lun *lun) 3886{ 3887 int i; 3888 struct ctl_page_index *page_index; 3889 struct ctl_softc *softc; 3890 3891 memcpy(&lun->mode_pages.index, page_index_template, 3892 sizeof(page_index_template)); 3893 3894 softc = lun->ctl_softc; 3895 3896 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3897 3898 page_index = &lun->mode_pages.index[i]; 3899 /* 3900 * If this is a disk-only mode page, there's no point in 3901 * setting it up. For some pages, we have to have some 3902 * basic information about the disk in order to calculate the 3903 * mode page data. 3904 */ 3905 if ((lun->be_lun->lun_type != T_DIRECT) 3906 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3907 continue; 3908 3909 switch (page_index->page_code & SMPH_PC_MASK) { 3910 case SMS_FORMAT_DEVICE_PAGE: { 3911 struct scsi_format_page *format_page; 3912 3913 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3914 panic("subpage is incorrect!"); 3915 3916 /* 3917 * Sectors per track are set above. Bytes per 3918 * sector need to be set here on a per-LUN basis. 3919 */ 3920 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3921 &format_page_default, 3922 sizeof(format_page_default)); 3923 memcpy(&lun->mode_pages.format_page[ 3924 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3925 sizeof(format_page_changeable)); 3926 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3927 &format_page_default, 3928 sizeof(format_page_default)); 3929 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3930 &format_page_default, 3931 sizeof(format_page_default)); 3932 3933 format_page = &lun->mode_pages.format_page[ 3934 CTL_PAGE_CURRENT]; 3935 scsi_ulto2b(lun->be_lun->blocksize, 3936 format_page->bytes_per_sector); 3937 3938 format_page = &lun->mode_pages.format_page[ 3939 CTL_PAGE_DEFAULT]; 3940 scsi_ulto2b(lun->be_lun->blocksize, 3941 format_page->bytes_per_sector); 3942 3943 format_page = &lun->mode_pages.format_page[ 3944 CTL_PAGE_SAVED]; 3945 scsi_ulto2b(lun->be_lun->blocksize, 3946 format_page->bytes_per_sector); 3947 3948 page_index->page_data = 3949 (uint8_t *)lun->mode_pages.format_page; 3950 break; 3951 } 3952 case SMS_RIGID_DISK_PAGE: { 3953 struct scsi_rigid_disk_page *rigid_disk_page; 3954 uint32_t sectors_per_cylinder; 3955 uint64_t cylinders; 3956#ifndef __XSCALE__ 3957 int shift; 3958#endif /* !__XSCALE__ */ 3959 3960 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3961 panic("invalid subpage value %d", 3962 page_index->subpage); 3963 3964 /* 3965 * Rotation rate and sectors per track are set 3966 * above. We calculate the cylinders here based on 3967 * capacity. Due to the number of heads and 3968 * sectors per track we're using, smaller arrays 3969 * may turn out to have 0 cylinders. Linux and 3970 * FreeBSD don't pay attention to these mode pages 3971 * to figure out capacity, but Solaris does. It 3972 * seems to deal with 0 cylinders just fine, and 3973 * works out a fake geometry based on the capacity. 3974 */ 3975 memcpy(&lun->mode_pages.rigid_disk_page[ 3976 CTL_PAGE_CURRENT], &rigid_disk_page_default, 3977 sizeof(rigid_disk_page_default)); 3978 memcpy(&lun->mode_pages.rigid_disk_page[ 3979 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3980 sizeof(rigid_disk_page_changeable)); 3981 memcpy(&lun->mode_pages.rigid_disk_page[ 3982 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3983 sizeof(rigid_disk_page_default)); 3984 memcpy(&lun->mode_pages.rigid_disk_page[ 3985 CTL_PAGE_SAVED], &rigid_disk_page_default, 3986 sizeof(rigid_disk_page_default)); 3987 3988 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3989 CTL_DEFAULT_HEADS; 3990 3991 /* 3992 * The divide method here will be more accurate, 3993 * probably, but results in floating point being 3994 * used in the kernel on i386 (__udivdi3()). On the 3995 * XScale, though, __udivdi3() is implemented in 3996 * software. 3997 * 3998 * The shift method for cylinder calculation is 3999 * accurate if sectors_per_cylinder is a power of 4000 * 2. Otherwise it might be slightly off -- you 4001 * might have a bit of a truncation problem. 4002 */ 4003#ifdef __XSCALE__ 4004 cylinders = (lun->be_lun->maxlba + 1) / 4005 sectors_per_cylinder; 4006#else 4007 for (shift = 31; shift > 0; shift--) { 4008 if (sectors_per_cylinder & (1 << shift)) 4009 break; 4010 } 4011 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4012#endif 4013 4014 /* 4015 * We've basically got 3 bytes, or 24 bits for the 4016 * cylinder size in the mode page. If we're over, 4017 * just round down to 2^24. 4018 */ 4019 if (cylinders > 0xffffff) 4020 cylinders = 0xffffff; 4021 4022 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4023 CTL_PAGE_CURRENT]; 4024 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4025 4026 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4027 CTL_PAGE_DEFAULT]; 4028 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4029 4030 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4031 CTL_PAGE_SAVED]; 4032 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4033 4034 page_index->page_data = 4035 (uint8_t *)lun->mode_pages.rigid_disk_page; 4036 break; 4037 } 4038 case SMS_CACHING_PAGE: { 4039 4040 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4041 panic("invalid subpage value %d", 4042 page_index->subpage); 4043 /* 4044 * Defaults should be okay here, no calculations 4045 * needed. 4046 */ 4047 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4048 &caching_page_default, 4049 sizeof(caching_page_default)); 4050 memcpy(&lun->mode_pages.caching_page[ 4051 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4052 sizeof(caching_page_changeable)); 4053 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4054 &caching_page_default, 4055 sizeof(caching_page_default)); 4056 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4057 &caching_page_default, 4058 sizeof(caching_page_default)); 4059 page_index->page_data = 4060 (uint8_t *)lun->mode_pages.caching_page; 4061 break; 4062 } 4063 case SMS_CONTROL_MODE_PAGE: { 4064 4065 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4066 panic("invalid subpage value %d", 4067 page_index->subpage); 4068 4069 /* 4070 * Defaults should be okay here, no calculations 4071 * needed. 4072 */ 4073 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4074 &control_page_default, 4075 sizeof(control_page_default)); 4076 memcpy(&lun->mode_pages.control_page[ 4077 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4078 sizeof(control_page_changeable)); 4079 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4080 &control_page_default, 4081 sizeof(control_page_default)); 4082 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4083 &control_page_default, 4084 sizeof(control_page_default)); 4085 page_index->page_data = 4086 (uint8_t *)lun->mode_pages.control_page; 4087 break; 4088 4089 } 4090 case SMS_VENDOR_SPECIFIC_PAGE:{ 4091 switch (page_index->subpage) { 4092 case PWR_SUBPAGE_CODE: { 4093 struct copan_power_subpage *current_page, 4094 *saved_page; 4095 4096 memcpy(&lun->mode_pages.power_subpage[ 4097 CTL_PAGE_CURRENT], 4098 &power_page_default, 4099 sizeof(power_page_default)); 4100 memcpy(&lun->mode_pages.power_subpage[ 4101 CTL_PAGE_CHANGEABLE], 4102 &power_page_changeable, 4103 sizeof(power_page_changeable)); 4104 memcpy(&lun->mode_pages.power_subpage[ 4105 CTL_PAGE_DEFAULT], 4106 &power_page_default, 4107 sizeof(power_page_default)); 4108 memcpy(&lun->mode_pages.power_subpage[ 4109 CTL_PAGE_SAVED], 4110 &power_page_default, 4111 sizeof(power_page_default)); 4112 page_index->page_data = 4113 (uint8_t *)lun->mode_pages.power_subpage; 4114 4115 current_page = (struct copan_power_subpage *) 4116 (page_index->page_data + 4117 (page_index->page_len * 4118 CTL_PAGE_CURRENT)); 4119 saved_page = (struct copan_power_subpage *) 4120 (page_index->page_data + 4121 (page_index->page_len * 4122 CTL_PAGE_SAVED)); 4123 break; 4124 } 4125 case APS_SUBPAGE_CODE: { 4126 struct copan_aps_subpage *current_page, 4127 *saved_page; 4128 4129 // This gets set multiple times but 4130 // it should always be the same. It's 4131 // only done during init so who cares. 4132 index_to_aps_page = i; 4133 4134 memcpy(&lun->mode_pages.aps_subpage[ 4135 CTL_PAGE_CURRENT], 4136 &aps_page_default, 4137 sizeof(aps_page_default)); 4138 memcpy(&lun->mode_pages.aps_subpage[ 4139 CTL_PAGE_CHANGEABLE], 4140 &aps_page_changeable, 4141 sizeof(aps_page_changeable)); 4142 memcpy(&lun->mode_pages.aps_subpage[ 4143 CTL_PAGE_DEFAULT], 4144 &aps_page_default, 4145 sizeof(aps_page_default)); 4146 memcpy(&lun->mode_pages.aps_subpage[ 4147 CTL_PAGE_SAVED], 4148 &aps_page_default, 4149 sizeof(aps_page_default)); 4150 page_index->page_data = 4151 (uint8_t *)lun->mode_pages.aps_subpage; 4152 4153 current_page = (struct copan_aps_subpage *) 4154 (page_index->page_data + 4155 (page_index->page_len * 4156 CTL_PAGE_CURRENT)); 4157 saved_page = (struct copan_aps_subpage *) 4158 (page_index->page_data + 4159 (page_index->page_len * 4160 CTL_PAGE_SAVED)); 4161 break; 4162 } 4163 case DBGCNF_SUBPAGE_CODE: { 4164 struct copan_debugconf_subpage *current_page, 4165 *saved_page; 4166 4167 memcpy(&lun->mode_pages.debugconf_subpage[ 4168 CTL_PAGE_CURRENT], 4169 &debugconf_page_default, 4170 sizeof(debugconf_page_default)); 4171 memcpy(&lun->mode_pages.debugconf_subpage[ 4172 CTL_PAGE_CHANGEABLE], 4173 &debugconf_page_changeable, 4174 sizeof(debugconf_page_changeable)); 4175 memcpy(&lun->mode_pages.debugconf_subpage[ 4176 CTL_PAGE_DEFAULT], 4177 &debugconf_page_default, 4178 sizeof(debugconf_page_default)); 4179 memcpy(&lun->mode_pages.debugconf_subpage[ 4180 CTL_PAGE_SAVED], 4181 &debugconf_page_default, 4182 sizeof(debugconf_page_default)); 4183 page_index->page_data = 4184 (uint8_t *)lun->mode_pages.debugconf_subpage; 4185 4186 current_page = (struct copan_debugconf_subpage *) 4187 (page_index->page_data + 4188 (page_index->page_len * 4189 CTL_PAGE_CURRENT)); 4190 saved_page = (struct copan_debugconf_subpage *) 4191 (page_index->page_data + 4192 (page_index->page_len * 4193 CTL_PAGE_SAVED)); 4194 break; 4195 } 4196 default: 4197 panic("invalid subpage value %d", 4198 page_index->subpage); 4199 break; 4200 } 4201 break; 4202 } 4203 default: 4204 panic("invalid page value %d", 4205 page_index->page_code & SMPH_PC_MASK); 4206 break; 4207 } 4208 } 4209 4210 return (CTL_RETVAL_COMPLETE); 4211} 4212 4213/* 4214 * LUN allocation. 4215 * 4216 * Requirements: 4217 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4218 * wants us to allocate the LUN and he can block. 4219 * - ctl_softc is always set 4220 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4221 * 4222 * Returns 0 for success, non-zero (errno) for failure. 4223 */ 4224static int 4225ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4226 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4227{ 4228 struct ctl_lun *nlun, *lun; 4229 struct ctl_frontend *fe; 4230 int lun_number, i, lun_malloced; 4231 4232 if (be_lun == NULL) 4233 return (EINVAL); 4234 4235 /* 4236 * We currently only support Direct Access or Processor LUN types. 4237 */ 4238 switch (be_lun->lun_type) { 4239 case T_DIRECT: 4240 break; 4241 case T_PROCESSOR: 4242 break; 4243 case T_SEQUENTIAL: 4244 case T_CHANGER: 4245 default: 4246 be_lun->lun_config_status(be_lun->be_lun, 4247 CTL_LUN_CONFIG_FAILURE); 4248 break; 4249 } 4250 if (ctl_lun == NULL) { 4251 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4252 lun_malloced = 1; 4253 } else { 4254 lun_malloced = 0; 4255 lun = ctl_lun; 4256 } 4257 4258 memset(lun, 0, sizeof(*lun)); 4259 if (lun_malloced) 4260 lun->flags = CTL_LUN_MALLOCED; 4261 4262 mtx_lock(&ctl_softc->ctl_lock); 4263 /* 4264 * See if the caller requested a particular LUN number. If so, see 4265 * if it is available. Otherwise, allocate the first available LUN. 4266 */ 4267 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4268 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4269 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4270 mtx_unlock(&ctl_softc->ctl_lock); 4271 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4272 printf("ctl: requested LUN ID %d is higher " 4273 "than CTL_MAX_LUNS - 1 (%d)\n", 4274 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4275 } else { 4276 /* 4277 * XXX KDM return an error, or just assign 4278 * another LUN ID in this case?? 4279 */ 4280 printf("ctl: requested LUN ID %d is already " 4281 "in use\n", be_lun->req_lun_id); 4282 } 4283 if (lun->flags & CTL_LUN_MALLOCED) 4284 free(lun, M_CTL); 4285 be_lun->lun_config_status(be_lun->be_lun, 4286 CTL_LUN_CONFIG_FAILURE); 4287 return (ENOSPC); 4288 } 4289 lun_number = be_lun->req_lun_id; 4290 } else { 4291 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4292 if (lun_number == -1) { 4293 mtx_unlock(&ctl_softc->ctl_lock); 4294 printf("ctl: can't allocate LUN on target %ju, out of " 4295 "LUNs\n", (uintmax_t)target_id.id); 4296 if (lun->flags & CTL_LUN_MALLOCED) 4297 free(lun, M_CTL); 4298 be_lun->lun_config_status(be_lun->be_lun, 4299 CTL_LUN_CONFIG_FAILURE); 4300 return (ENOSPC); 4301 } 4302 } 4303 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4304 4305 lun->target = target_id; 4306 lun->lun = lun_number; 4307 lun->be_lun = be_lun; 4308 /* 4309 * The processor LUN is always enabled. Disk LUNs come on line 4310 * disabled, and must be enabled by the backend. 4311 */ 4312 lun->flags |= CTL_LUN_DISABLED; 4313 lun->backend = be_lun->be; 4314 be_lun->ctl_lun = lun; 4315 be_lun->lun_id = lun_number; 4316 atomic_add_int(&be_lun->be->num_luns, 1); 4317 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4318 lun->flags |= CTL_LUN_STOPPED; 4319 4320 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4321 lun->flags |= CTL_LUN_INOPERABLE; 4322 4323 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4324 lun->flags |= CTL_LUN_PRIMARY_SC; 4325 4326 lun->ctl_softc = ctl_softc; 4327 TAILQ_INIT(&lun->ooa_queue); 4328 TAILQ_INIT(&lun->blocked_queue); 4329 STAILQ_INIT(&lun->error_list); 4330 4331 /* 4332 * Initialize the mode page index. 4333 */ 4334 ctl_init_page_index(lun); 4335 4336 /* 4337 * Set the poweron UA for all initiators on this LUN only. 4338 */ 4339 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4340 lun->pending_sense[i].ua_pending = CTL_UA_POWERON; 4341 4342 /* 4343 * Now, before we insert this lun on the lun list, set the lun 4344 * inventory changed UA for all other luns. 4345 */ 4346 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4347 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4348 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4349 } 4350 } 4351 4352 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4353 4354 ctl_softc->ctl_luns[lun_number] = lun; 4355 4356 ctl_softc->num_luns++; 4357 4358 /* Setup statistics gathering */ 4359 lun->stats.device_type = be_lun->lun_type; 4360 lun->stats.lun_number = lun_number; 4361 if (lun->stats.device_type == T_DIRECT) 4362 lun->stats.blocksize = be_lun->blocksize; 4363 else 4364 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4365 for (i = 0;i < CTL_MAX_PORTS;i++) 4366 lun->stats.ports[i].targ_port = i; 4367 4368 mtx_unlock(&ctl_softc->ctl_lock); 4369 4370 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4371 4372 /* 4373 * Run through each registered FETD and bring it online if it isn't 4374 * already. Enable the target ID if it hasn't been enabled, and 4375 * enable this particular LUN. 4376 */ 4377 STAILQ_FOREACH(fe, &ctl_softc->fe_list, links) { 4378 int retval; 4379 4380 /* 4381 * XXX KDM this only works for ONE TARGET ID. We'll need 4382 * to do things differently if we go to a multiple target 4383 * ID scheme. 4384 */ 4385 if ((fe->status & CTL_PORT_STATUS_TARG_ONLINE) == 0) { 4386 4387 retval = fe->targ_enable(fe->targ_lun_arg, target_id); 4388 if (retval != 0) { 4389 printf("ctl_alloc_lun: FETD %s port %d " 4390 "returned error %d for targ_enable on " 4391 "target %ju\n", fe->port_name, 4392 fe->targ_port, retval, 4393 (uintmax_t)target_id.id); 4394 } else 4395 fe->status |= CTL_PORT_STATUS_TARG_ONLINE; 4396 } 4397 4398 retval = fe->lun_enable(fe->targ_lun_arg, target_id,lun_number); 4399 if (retval != 0) { 4400 printf("ctl_alloc_lun: FETD %s port %d returned error " 4401 "%d for lun_enable on target %ju lun %d\n", 4402 fe->port_name, fe->targ_port, retval, 4403 (uintmax_t)target_id.id, lun_number); 4404 } else 4405 fe->status |= CTL_PORT_STATUS_LUN_ONLINE; 4406 } 4407 return (0); 4408} 4409 4410/* 4411 * Delete a LUN. 4412 * Assumptions: 4413 * - LUN has already been marked invalid and any pending I/O has been taken 4414 * care of. 4415 */ 4416static int 4417ctl_free_lun(struct ctl_lun *lun) 4418{ 4419 struct ctl_softc *softc; 4420#if 0 4421 struct ctl_frontend *fe; 4422#endif 4423 struct ctl_lun *nlun; 4424 union ctl_io *io, *next_io; 4425 int i; 4426 4427 softc = lun->ctl_softc; 4428 4429 mtx_assert(&softc->ctl_lock, MA_OWNED); 4430 4431 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4432 4433 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4434 4435 softc->ctl_luns[lun->lun] = NULL; 4436 4437 if (TAILQ_FIRST(&lun->ooa_queue) != NULL) { 4438 printf("ctl_free_lun: aieee!! freeing a LUN with " 4439 "outstanding I/O!!\n"); 4440 } 4441 4442 /* 4443 * If we have anything pending on the RtR queue, remove it. 4444 */ 4445 for (io = (union ctl_io *)STAILQ_FIRST(&softc->rtr_queue); io != NULL; 4446 io = next_io) { 4447 uint32_t targ_lun; 4448 4449 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 4450 targ_lun = io->io_hdr.nexus.targ_lun; 4451 if (io->io_hdr.nexus.lun_map_fn != NULL) 4452 targ_lun = io->io_hdr.nexus.lun_map_fn(io->io_hdr.nexus.lun_map_arg, targ_lun); 4453 if ((io->io_hdr.nexus.targ_target.id == lun->target.id) 4454 && (targ_lun == lun->lun)) 4455 STAILQ_REMOVE(&softc->rtr_queue, &io->io_hdr, 4456 ctl_io_hdr, links); 4457 } 4458 4459 /* 4460 * Then remove everything from the blocked queue. 4461 */ 4462 for (io = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); io != NULL; 4463 io = next_io) { 4464 next_io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr,blocked_links); 4465 TAILQ_REMOVE(&lun->blocked_queue, &io->io_hdr, blocked_links); 4466 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 4467 } 4468 4469 /* 4470 * Now clear out the OOA queue, and free all the I/O. 4471 * XXX KDM should we notify the FETD here? We probably need to 4472 * quiesce the LUN before deleting it. 4473 */ 4474 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); io != NULL; 4475 io = next_io) { 4476 next_io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, ooa_links); 4477 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 4478 ctl_free_io(io); 4479 } 4480 4481 softc->num_luns--; 4482 4483 /* 4484 * XXX KDM this scheme only works for a single target/multiple LUN 4485 * setup. It needs to be revamped for a multiple target scheme. 4486 * 4487 * XXX KDM this results in fe->lun_disable() getting called twice, 4488 * once when ctl_disable_lun() is called, and a second time here. 4489 * We really need to re-think the LUN disable semantics. There 4490 * should probably be several steps/levels to LUN removal: 4491 * - disable 4492 * - invalidate 4493 * - free 4494 * 4495 * Right now we only have a disable method when communicating to 4496 * the front end ports, at least for individual LUNs. 4497 */ 4498#if 0 4499 STAILQ_FOREACH(fe, &softc->fe_list, links) { 4500 int retval; 4501 4502 retval = fe->lun_disable(fe->targ_lun_arg, lun->target, 4503 lun->lun); 4504 if (retval != 0) { 4505 printf("ctl_free_lun: FETD %s port %d returned error " 4506 "%d for lun_disable on target %ju lun %jd\n", 4507 fe->port_name, fe->targ_port, retval, 4508 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4509 } 4510 4511 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4512 fe->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4513 4514 retval = fe->targ_disable(fe->targ_lun_arg,lun->target); 4515 if (retval != 0) { 4516 printf("ctl_free_lun: FETD %s port %d " 4517 "returned error %d for targ_disable on " 4518 "target %ju\n", fe->port_name, 4519 fe->targ_port, retval, 4520 (uintmax_t)lun->target.id); 4521 } else 4522 fe->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4523 4524 if ((fe->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4525 continue; 4526 4527#if 0 4528 fe->port_offline(fe->onoff_arg); 4529 fe->status &= ~CTL_PORT_STATUS_ONLINE; 4530#endif 4531 } 4532 } 4533#endif 4534 4535 /* 4536 * Tell the backend to free resources, if this LUN has a backend. 4537 */ 4538 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4539 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4540 4541 if (lun->flags & CTL_LUN_MALLOCED) 4542 free(lun, M_CTL); 4543 4544 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4545 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4546 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4547 } 4548 } 4549 4550 return (0); 4551} 4552 4553static void 4554ctl_create_lun(struct ctl_be_lun *be_lun) 4555{ 4556 struct ctl_softc *ctl_softc; 4557 4558 ctl_softc = control_softc; 4559 4560 /* 4561 * ctl_alloc_lun() should handle all potential failure cases. 4562 */ 4563 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4564} 4565 4566int 4567ctl_add_lun(struct ctl_be_lun *be_lun) 4568{ 4569 struct ctl_softc *ctl_softc; 4570 4571 ctl_softc = control_softc; 4572 4573 mtx_lock(&ctl_softc->ctl_lock); 4574 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4575 mtx_unlock(&ctl_softc->ctl_lock); 4576 4577 ctl_wakeup_thread(); 4578 4579 return (0); 4580} 4581 4582int 4583ctl_enable_lun(struct ctl_be_lun *be_lun) 4584{ 4585 struct ctl_softc *ctl_softc; 4586 struct ctl_frontend *fe, *nfe; 4587 struct ctl_lun *lun; 4588 int retval; 4589 4590 ctl_softc = control_softc; 4591 4592 lun = (struct ctl_lun *)be_lun->ctl_lun; 4593 4594 mtx_lock(&ctl_softc->ctl_lock); 4595 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4596 /* 4597 * eh? Why did we get called if the LUN is already 4598 * enabled? 4599 */ 4600 mtx_unlock(&ctl_softc->ctl_lock); 4601 return (0); 4602 } 4603 lun->flags &= ~CTL_LUN_DISABLED; 4604 4605 for (fe = STAILQ_FIRST(&ctl_softc->fe_list); fe != NULL; fe = nfe) { 4606 nfe = STAILQ_NEXT(fe, links); 4607 4608 /* 4609 * Drop the lock while we call the FETD's enable routine. 4610 * This can lead to a callback into CTL (at least in the 4611 * case of the internal initiator frontend. 4612 */ 4613 mtx_unlock(&ctl_softc->ctl_lock); 4614 retval = fe->lun_enable(fe->targ_lun_arg, lun->target,lun->lun); 4615 mtx_lock(&ctl_softc->ctl_lock); 4616 if (retval != 0) { 4617 printf("%s: FETD %s port %d returned error " 4618 "%d for lun_enable on target %ju lun %jd\n", 4619 __func__, fe->port_name, fe->targ_port, retval, 4620 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4621 } 4622#if 0 4623 else { 4624 /* NOTE: TODO: why does lun enable affect port status? */ 4625 fe->status |= CTL_PORT_STATUS_LUN_ONLINE; 4626 } 4627#endif 4628 } 4629 4630 mtx_unlock(&ctl_softc->ctl_lock); 4631 4632 return (0); 4633} 4634 4635int 4636ctl_disable_lun(struct ctl_be_lun *be_lun) 4637{ 4638 struct ctl_softc *ctl_softc; 4639 struct ctl_frontend *fe; 4640 struct ctl_lun *lun; 4641 int retval; 4642 4643 ctl_softc = control_softc; 4644 4645 lun = (struct ctl_lun *)be_lun->ctl_lun; 4646 4647 mtx_lock(&ctl_softc->ctl_lock); 4648 4649 if (lun->flags & CTL_LUN_DISABLED) { 4650 mtx_unlock(&ctl_softc->ctl_lock); 4651 return (0); 4652 } 4653 lun->flags |= CTL_LUN_DISABLED; 4654 4655 STAILQ_FOREACH(fe, &ctl_softc->fe_list, links) { 4656 mtx_unlock(&ctl_softc->ctl_lock); 4657 /* 4658 * Drop the lock before we call the frontend's disable 4659 * routine, to avoid lock order reversals. 4660 * 4661 * XXX KDM what happens if the frontend list changes while 4662 * we're traversing it? It's unlikely, but should be handled. 4663 */ 4664 retval = fe->lun_disable(fe->targ_lun_arg, lun->target, 4665 lun->lun); 4666 mtx_lock(&ctl_softc->ctl_lock); 4667 if (retval != 0) { 4668 printf("ctl_alloc_lun: FETD %s port %d returned error " 4669 "%d for lun_disable on target %ju lun %jd\n", 4670 fe->port_name, fe->targ_port, retval, 4671 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4672 } 4673 } 4674 4675 mtx_unlock(&ctl_softc->ctl_lock); 4676 4677 return (0); 4678} 4679 4680int 4681ctl_start_lun(struct ctl_be_lun *be_lun) 4682{ 4683 struct ctl_softc *ctl_softc; 4684 struct ctl_lun *lun; 4685 4686 ctl_softc = control_softc; 4687 4688 lun = (struct ctl_lun *)be_lun->ctl_lun; 4689 4690 mtx_lock(&ctl_softc->ctl_lock); 4691 lun->flags &= ~CTL_LUN_STOPPED; 4692 mtx_unlock(&ctl_softc->ctl_lock); 4693 4694 return (0); 4695} 4696 4697int 4698ctl_stop_lun(struct ctl_be_lun *be_lun) 4699{ 4700 struct ctl_softc *ctl_softc; 4701 struct ctl_lun *lun; 4702 4703 ctl_softc = control_softc; 4704 4705 lun = (struct ctl_lun *)be_lun->ctl_lun; 4706 4707 mtx_lock(&ctl_softc->ctl_lock); 4708 lun->flags |= CTL_LUN_STOPPED; 4709 mtx_unlock(&ctl_softc->ctl_lock); 4710 4711 return (0); 4712} 4713 4714int 4715ctl_lun_offline(struct ctl_be_lun *be_lun) 4716{ 4717 struct ctl_softc *ctl_softc; 4718 struct ctl_lun *lun; 4719 4720 ctl_softc = control_softc; 4721 4722 lun = (struct ctl_lun *)be_lun->ctl_lun; 4723 4724 mtx_lock(&ctl_softc->ctl_lock); 4725 lun->flags |= CTL_LUN_OFFLINE; 4726 mtx_unlock(&ctl_softc->ctl_lock); 4727 4728 return (0); 4729} 4730 4731int 4732ctl_lun_online(struct ctl_be_lun *be_lun) 4733{ 4734 struct ctl_softc *ctl_softc; 4735 struct ctl_lun *lun; 4736 4737 ctl_softc = control_softc; 4738 4739 lun = (struct ctl_lun *)be_lun->ctl_lun; 4740 4741 mtx_lock(&ctl_softc->ctl_lock); 4742 lun->flags &= ~CTL_LUN_OFFLINE; 4743 mtx_unlock(&ctl_softc->ctl_lock); 4744 4745 return (0); 4746} 4747 4748int 4749ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4750{ 4751 struct ctl_softc *ctl_softc; 4752 struct ctl_lun *lun; 4753 4754 ctl_softc = control_softc; 4755 4756 lun = (struct ctl_lun *)be_lun->ctl_lun; 4757 4758 mtx_lock(&ctl_softc->ctl_lock); 4759 4760 /* 4761 * The LUN needs to be disabled before it can be marked invalid. 4762 */ 4763 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4764 mtx_unlock(&ctl_softc->ctl_lock); 4765 return (-1); 4766 } 4767 /* 4768 * Mark the LUN invalid. 4769 */ 4770 lun->flags |= CTL_LUN_INVALID; 4771 4772 /* 4773 * If there is nothing in the OOA queue, go ahead and free the LUN. 4774 * If we have something in the OOA queue, we'll free it when the 4775 * last I/O completes. 4776 */ 4777 if (TAILQ_FIRST(&lun->ooa_queue) == NULL) 4778 ctl_free_lun(lun); 4779 mtx_unlock(&ctl_softc->ctl_lock); 4780 4781 return (0); 4782} 4783 4784int 4785ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4786{ 4787 struct ctl_softc *ctl_softc; 4788 struct ctl_lun *lun; 4789 4790 ctl_softc = control_softc; 4791 lun = (struct ctl_lun *)be_lun->ctl_lun; 4792 4793 mtx_lock(&ctl_softc->ctl_lock); 4794 lun->flags |= CTL_LUN_INOPERABLE; 4795 mtx_unlock(&ctl_softc->ctl_lock); 4796 4797 return (0); 4798} 4799 4800int 4801ctl_lun_operable(struct ctl_be_lun *be_lun) 4802{ 4803 struct ctl_softc *ctl_softc; 4804 struct ctl_lun *lun; 4805 4806 ctl_softc = control_softc; 4807 lun = (struct ctl_lun *)be_lun->ctl_lun; 4808 4809 mtx_lock(&ctl_softc->ctl_lock); 4810 lun->flags &= ~CTL_LUN_INOPERABLE; 4811 mtx_unlock(&ctl_softc->ctl_lock); 4812 4813 return (0); 4814} 4815 4816int 4817ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 4818 int lock) 4819{ 4820 struct ctl_softc *softc; 4821 struct ctl_lun *lun; 4822 struct copan_aps_subpage *current_sp; 4823 struct ctl_page_index *page_index; 4824 int i; 4825 4826 softc = control_softc; 4827 4828 mtx_lock(&softc->ctl_lock); 4829 4830 lun = (struct ctl_lun *)be_lun->ctl_lun; 4831 4832 page_index = NULL; 4833 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4834 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 4835 APS_PAGE_CODE) 4836 continue; 4837 4838 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 4839 continue; 4840 page_index = &lun->mode_pages.index[i]; 4841 } 4842 4843 if (page_index == NULL) { 4844 mtx_unlock(&softc->ctl_lock); 4845 printf("%s: APS subpage not found for lun %ju!\n", __func__, 4846 (uintmax_t)lun->lun); 4847 return (1); 4848 } 4849#if 0 4850 if ((softc->aps_locked_lun != 0) 4851 && (softc->aps_locked_lun != lun->lun)) { 4852 printf("%s: attempt to lock LUN %llu when %llu is already " 4853 "locked\n"); 4854 mtx_unlock(&softc->ctl_lock); 4855 return (1); 4856 } 4857#endif 4858 4859 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 4860 (page_index->page_len * CTL_PAGE_CURRENT)); 4861 4862 if (lock != 0) { 4863 current_sp->lock_active = APS_LOCK_ACTIVE; 4864 softc->aps_locked_lun = lun->lun; 4865 } else { 4866 current_sp->lock_active = 0; 4867 softc->aps_locked_lun = 0; 4868 } 4869 4870 4871 /* 4872 * If we're in HA mode, try to send the lock message to the other 4873 * side. 4874 */ 4875 if (ctl_is_single == 0) { 4876 int isc_retval; 4877 union ctl_ha_msg lock_msg; 4878 4879 lock_msg.hdr.nexus = *nexus; 4880 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 4881 if (lock != 0) 4882 lock_msg.aps.lock_flag = 1; 4883 else 4884 lock_msg.aps.lock_flag = 0; 4885 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 4886 sizeof(lock_msg), 0); 4887 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 4888 printf("%s: APS (lock=%d) error returned from " 4889 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 4890 mtx_unlock(&softc->ctl_lock); 4891 return (1); 4892 } 4893 } 4894 4895 mtx_unlock(&softc->ctl_lock); 4896 4897 return (0); 4898} 4899 4900void 4901ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4902{ 4903 struct ctl_lun *lun; 4904 struct ctl_softc *softc; 4905 int i; 4906 4907 softc = control_softc; 4908 4909 mtx_lock(&softc->ctl_lock); 4910 4911 lun = (struct ctl_lun *)be_lun->ctl_lun; 4912 4913 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4914 lun->pending_sense[i].ua_pending |= CTL_UA_CAPACITY_CHANGED; 4915 4916 mtx_unlock(&softc->ctl_lock); 4917} 4918 4919/* 4920 * Backend "memory move is complete" callback for requests that never 4921 * make it down to say RAIDCore's configuration code. 4922 */ 4923int 4924ctl_config_move_done(union ctl_io *io) 4925{ 4926 int retval; 4927 4928 retval = CTL_RETVAL_COMPLETE; 4929 4930 4931 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4932 /* 4933 * XXX KDM this shouldn't happen, but what if it does? 4934 */ 4935 if (io->io_hdr.io_type != CTL_IO_SCSI) 4936 panic("I/O type isn't CTL_IO_SCSI!"); 4937 4938 if ((io->io_hdr.port_status == 0) 4939 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 4940 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 4941 io->io_hdr.status = CTL_SUCCESS; 4942 else if ((io->io_hdr.port_status != 0) 4943 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 4944 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 4945 /* 4946 * For hardware error sense keys, the sense key 4947 * specific value is defined to be a retry count, 4948 * but we use it to pass back an internal FETD 4949 * error code. XXX KDM Hopefully the FETD is only 4950 * using 16 bits for an error code, since that's 4951 * all the space we have in the sks field. 4952 */ 4953 ctl_set_internal_failure(&io->scsiio, 4954 /*sks_valid*/ 1, 4955 /*retry_count*/ 4956 io->io_hdr.port_status); 4957 free(io->scsiio.kern_data_ptr, M_CTL); 4958 ctl_done(io); 4959 goto bailout; 4960 } 4961 4962 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 4963 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 4964 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4965 /* 4966 * XXX KDM just assuming a single pointer here, and not a 4967 * S/G list. If we start using S/G lists for config data, 4968 * we'll need to know how to clean them up here as well. 4969 */ 4970 free(io->scsiio.kern_data_ptr, M_CTL); 4971 /* Hopefully the user has already set the status... */ 4972 ctl_done(io); 4973 } else { 4974 /* 4975 * XXX KDM now we need to continue data movement. Some 4976 * options: 4977 * - call ctl_scsiio() again? We don't do this for data 4978 * writes, because for those at least we know ahead of 4979 * time where the write will go and how long it is. For 4980 * config writes, though, that information is largely 4981 * contained within the write itself, thus we need to 4982 * parse out the data again. 4983 * 4984 * - Call some other function once the data is in? 4985 */ 4986 4987 /* 4988 * XXX KDM call ctl_scsiio() again for now, and check flag 4989 * bits to see whether we're allocated or not. 4990 */ 4991 retval = ctl_scsiio(&io->scsiio); 4992 } 4993bailout: 4994 return (retval); 4995} 4996 4997/* 4998 * This gets called by a backend driver when it is done with a 4999 * data_submit method. 5000 */ 5001void 5002ctl_data_submit_done(union ctl_io *io) 5003{ 5004 /* 5005 * If the IO_CONT flag is set, we need to call the supplied 5006 * function to continue processing the I/O, instead of completing 5007 * the I/O just yet. 5008 * 5009 * If there is an error, though, we don't want to keep processing. 5010 * Instead, just send status back to the initiator. 5011 */ 5012 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5013 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5014 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5015 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5016 io->scsiio.io_cont(io); 5017 return; 5018 } 5019 ctl_done(io); 5020} 5021 5022/* 5023 * This gets called by a backend driver when it is done with a 5024 * configuration write. 5025 */ 5026void 5027ctl_config_write_done(union ctl_io *io) 5028{ 5029 /* 5030 * If the IO_CONT flag is set, we need to call the supplied 5031 * function to continue processing the I/O, instead of completing 5032 * the I/O just yet. 5033 * 5034 * If there is an error, though, we don't want to keep processing. 5035 * Instead, just send status back to the initiator. 5036 */ 5037 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5038 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5039 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5040 io->scsiio.io_cont(io); 5041 return; 5042 } 5043 /* 5044 * Since a configuration write can be done for commands that actually 5045 * have data allocated, like write buffer, and commands that have 5046 * no data, like start/stop unit, we need to check here. 5047 */ 5048 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 5049 free(io->scsiio.kern_data_ptr, M_CTL); 5050 ctl_done(io); 5051} 5052 5053/* 5054 * SCSI release command. 5055 */ 5056int 5057ctl_scsi_release(struct ctl_scsiio *ctsio) 5058{ 5059 int length, longid, thirdparty_id, resv_id; 5060 struct ctl_softc *ctl_softc; 5061 struct ctl_lun *lun; 5062 5063 length = 0; 5064 resv_id = 0; 5065 5066 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5067 5068 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5069 ctl_softc = control_softc; 5070 5071 switch (ctsio->cdb[0]) { 5072 case RELEASE: { 5073 struct scsi_release *cdb; 5074 5075 cdb = (struct scsi_release *)ctsio->cdb; 5076 if ((cdb->byte2 & 0x1f) != 0) { 5077 ctl_set_invalid_field(ctsio, 5078 /*sks_valid*/ 1, 5079 /*command*/ 1, 5080 /*field*/ 1, 5081 /*bit_valid*/ 0, 5082 /*bit*/ 0); 5083 ctl_done((union ctl_io *)ctsio); 5084 return (CTL_RETVAL_COMPLETE); 5085 } 5086 break; 5087 } 5088 case RELEASE_10: { 5089 struct scsi_release_10 *cdb; 5090 5091 cdb = (struct scsi_release_10 *)ctsio->cdb; 5092 5093 if ((cdb->byte2 & SR10_EXTENT) != 0) { 5094 ctl_set_invalid_field(ctsio, 5095 /*sks_valid*/ 1, 5096 /*command*/ 1, 5097 /*field*/ 1, 5098 /*bit_valid*/ 1, 5099 /*bit*/ 0); 5100 ctl_done((union ctl_io *)ctsio); 5101 return (CTL_RETVAL_COMPLETE); 5102 5103 } 5104 5105 if ((cdb->byte2 & SR10_3RDPTY) != 0) { 5106 ctl_set_invalid_field(ctsio, 5107 /*sks_valid*/ 1, 5108 /*command*/ 1, 5109 /*field*/ 1, 5110 /*bit_valid*/ 1, 5111 /*bit*/ 4); 5112 ctl_done((union ctl_io *)ctsio); 5113 return (CTL_RETVAL_COMPLETE); 5114 } 5115 5116 if (cdb->byte2 & SR10_LONGID) 5117 longid = 1; 5118 else 5119 thirdparty_id = cdb->thirdparty_id; 5120 5121 resv_id = cdb->resv_id; 5122 length = scsi_2btoul(cdb->length); 5123 break; 5124 } 5125 } 5126 5127 5128 /* 5129 * XXX KDM right now, we only support LUN reservation. We don't 5130 * support 3rd party reservations, or extent reservations, which 5131 * might actually need the parameter list. If we've gotten this 5132 * far, we've got a LUN reservation. Anything else got kicked out 5133 * above. So, according to SPC, ignore the length. 5134 */ 5135 length = 0; 5136 5137 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5138 && (length > 0)) { 5139 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5140 ctsio->kern_data_len = length; 5141 ctsio->kern_total_len = length; 5142 ctsio->kern_data_resid = 0; 5143 ctsio->kern_rel_offset = 0; 5144 ctsio->kern_sg_entries = 0; 5145 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5146 ctsio->be_move_done = ctl_config_move_done; 5147 ctl_datamove((union ctl_io *)ctsio); 5148 5149 return (CTL_RETVAL_COMPLETE); 5150 } 5151 5152 if (length > 0) 5153 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5154 5155 mtx_lock(&ctl_softc->ctl_lock); 5156 5157 /* 5158 * According to SPC, it is not an error for an intiator to attempt 5159 * to release a reservation on a LUN that isn't reserved, or that 5160 * is reserved by another initiator. The reservation can only be 5161 * released, though, by the initiator who made it or by one of 5162 * several reset type events. 5163 */ 5164 if (lun->flags & CTL_LUN_RESERVED) { 5165 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5166 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5167 && (ctsio->io_hdr.nexus.targ_target.id == 5168 lun->rsv_nexus.targ_target.id)) { 5169 lun->flags &= ~CTL_LUN_RESERVED; 5170 } 5171 } 5172 5173 ctsio->scsi_status = SCSI_STATUS_OK; 5174 ctsio->io_hdr.status = CTL_SUCCESS; 5175 5176 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5177 free(ctsio->kern_data_ptr, M_CTL); 5178 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5179 } 5180 5181 mtx_unlock(&ctl_softc->ctl_lock); 5182 5183 ctl_done((union ctl_io *)ctsio); 5184 return (CTL_RETVAL_COMPLETE); 5185} 5186 5187int 5188ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5189{ 5190 int extent, thirdparty, longid; 5191 int resv_id, length; 5192 uint64_t thirdparty_id; 5193 struct ctl_softc *ctl_softc; 5194 struct ctl_lun *lun; 5195 5196 extent = 0; 5197 thirdparty = 0; 5198 longid = 0; 5199 resv_id = 0; 5200 length = 0; 5201 thirdparty_id = 0; 5202 5203 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5204 5205 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5206 ctl_softc = control_softc; 5207 5208 switch (ctsio->cdb[0]) { 5209 case RESERVE: { 5210 struct scsi_reserve *cdb; 5211 5212 cdb = (struct scsi_reserve *)ctsio->cdb; 5213 if ((cdb->byte2 & 0x1f) != 0) { 5214 ctl_set_invalid_field(ctsio, 5215 /*sks_valid*/ 1, 5216 /*command*/ 1, 5217 /*field*/ 1, 5218 /*bit_valid*/ 0, 5219 /*bit*/ 0); 5220 ctl_done((union ctl_io *)ctsio); 5221 return (CTL_RETVAL_COMPLETE); 5222 } 5223 resv_id = cdb->resv_id; 5224 length = scsi_2btoul(cdb->length); 5225 break; 5226 } 5227 case RESERVE_10: { 5228 struct scsi_reserve_10 *cdb; 5229 5230 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5231 5232 if ((cdb->byte2 & SR10_EXTENT) != 0) { 5233 ctl_set_invalid_field(ctsio, 5234 /*sks_valid*/ 1, 5235 /*command*/ 1, 5236 /*field*/ 1, 5237 /*bit_valid*/ 1, 5238 /*bit*/ 0); 5239 ctl_done((union ctl_io *)ctsio); 5240 return (CTL_RETVAL_COMPLETE); 5241 } 5242 if ((cdb->byte2 & SR10_3RDPTY) != 0) { 5243 ctl_set_invalid_field(ctsio, 5244 /*sks_valid*/ 1, 5245 /*command*/ 1, 5246 /*field*/ 1, 5247 /*bit_valid*/ 1, 5248 /*bit*/ 4); 5249 ctl_done((union ctl_io *)ctsio); 5250 return (CTL_RETVAL_COMPLETE); 5251 } 5252 if (cdb->byte2 & SR10_LONGID) 5253 longid = 1; 5254 else 5255 thirdparty_id = cdb->thirdparty_id; 5256 5257 resv_id = cdb->resv_id; 5258 length = scsi_2btoul(cdb->length); 5259 break; 5260 } 5261 } 5262 5263 /* 5264 * XXX KDM right now, we only support LUN reservation. We don't 5265 * support 3rd party reservations, or extent reservations, which 5266 * might actually need the parameter list. If we've gotten this 5267 * far, we've got a LUN reservation. Anything else got kicked out 5268 * above. So, according to SPC, ignore the length. 5269 */ 5270 length = 0; 5271 5272 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5273 && (length > 0)) { 5274 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5275 ctsio->kern_data_len = length; 5276 ctsio->kern_total_len = length; 5277 ctsio->kern_data_resid = 0; 5278 ctsio->kern_rel_offset = 0; 5279 ctsio->kern_sg_entries = 0; 5280 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5281 ctsio->be_move_done = ctl_config_move_done; 5282 ctl_datamove((union ctl_io *)ctsio); 5283 5284 return (CTL_RETVAL_COMPLETE); 5285 } 5286 5287 if (length > 0) 5288 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5289 5290 mtx_lock(&ctl_softc->ctl_lock); 5291 if (lun->flags & CTL_LUN_RESERVED) { 5292 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5293 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5294 || (ctsio->io_hdr.nexus.targ_target.id != 5295 lun->rsv_nexus.targ_target.id)) { 5296 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5297 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5298 goto bailout; 5299 } 5300 } 5301 5302 lun->flags |= CTL_LUN_RESERVED; 5303 lun->rsv_nexus = ctsio->io_hdr.nexus; 5304 5305 ctsio->scsi_status = SCSI_STATUS_OK; 5306 ctsio->io_hdr.status = CTL_SUCCESS; 5307 5308bailout: 5309 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5310 free(ctsio->kern_data_ptr, M_CTL); 5311 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5312 } 5313 5314 mtx_unlock(&ctl_softc->ctl_lock); 5315 5316 ctl_done((union ctl_io *)ctsio); 5317 return (CTL_RETVAL_COMPLETE); 5318} 5319 5320int 5321ctl_start_stop(struct ctl_scsiio *ctsio) 5322{ 5323 struct scsi_start_stop_unit *cdb; 5324 struct ctl_lun *lun; 5325 struct ctl_softc *ctl_softc; 5326 int retval; 5327 5328 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5329 5330 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5331 ctl_softc = control_softc; 5332 retval = 0; 5333 5334 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5335 5336 /* 5337 * XXX KDM 5338 * We don't support the immediate bit on a stop unit. In order to 5339 * do that, we would need to code up a way to know that a stop is 5340 * pending, and hold off any new commands until it completes, one 5341 * way or another. Then we could accept or reject those commands 5342 * depending on its status. We would almost need to do the reverse 5343 * of what we do below for an immediate start -- return the copy of 5344 * the ctl_io to the FETD with status to send to the host (and to 5345 * free the copy!) and then free the original I/O once the stop 5346 * actually completes. That way, the OOA queue mechanism can work 5347 * to block commands that shouldn't proceed. Another alternative 5348 * would be to put the copy in the queue in place of the original, 5349 * and return the original back to the caller. That could be 5350 * slightly safer.. 5351 */ 5352 if ((cdb->byte2 & SSS_IMMED) 5353 && ((cdb->how & SSS_START) == 0)) { 5354 ctl_set_invalid_field(ctsio, 5355 /*sks_valid*/ 1, 5356 /*command*/ 1, 5357 /*field*/ 1, 5358 /*bit_valid*/ 1, 5359 /*bit*/ 0); 5360 ctl_done((union ctl_io *)ctsio); 5361 return (CTL_RETVAL_COMPLETE); 5362 } 5363 5364 /* 5365 * We don't support the power conditions field. We need to check 5366 * this prior to checking the load/eject and start/stop bits. 5367 */ 5368 if ((cdb->how & SSS_PC_MASK) != SSS_PC_START_VALID) { 5369 ctl_set_invalid_field(ctsio, 5370 /*sks_valid*/ 1, 5371 /*command*/ 1, 5372 /*field*/ 4, 5373 /*bit_valid*/ 1, 5374 /*bit*/ 4); 5375 ctl_done((union ctl_io *)ctsio); 5376 return (CTL_RETVAL_COMPLETE); 5377 } 5378 5379 /* 5380 * Media isn't removable, so we can't load or eject it. 5381 */ 5382 if ((cdb->how & SSS_LOEJ) != 0) { 5383 ctl_set_invalid_field(ctsio, 5384 /*sks_valid*/ 1, 5385 /*command*/ 1, 5386 /*field*/ 4, 5387 /*bit_valid*/ 1, 5388 /*bit*/ 1); 5389 ctl_done((union ctl_io *)ctsio); 5390 return (CTL_RETVAL_COMPLETE); 5391 } 5392 5393 if ((lun->flags & CTL_LUN_PR_RESERVED) 5394 && ((cdb->how & SSS_START)==0)) { 5395 uint32_t residx; 5396 5397 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5398 if (!lun->per_res[residx].registered 5399 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5400 5401 ctl_set_reservation_conflict(ctsio); 5402 ctl_done((union ctl_io *)ctsio); 5403 return (CTL_RETVAL_COMPLETE); 5404 } 5405 } 5406 5407 /* 5408 * If there is no backend on this device, we can't start or stop 5409 * it. In theory we shouldn't get any start/stop commands in the 5410 * first place at this level if the LUN doesn't have a backend. 5411 * That should get stopped by the command decode code. 5412 */ 5413 if (lun->backend == NULL) { 5414 ctl_set_invalid_opcode(ctsio); 5415 ctl_done((union ctl_io *)ctsio); 5416 return (CTL_RETVAL_COMPLETE); 5417 } 5418 5419 /* 5420 * XXX KDM Copan-specific offline behavior. 5421 * Figure out a reasonable way to port this? 5422 */ 5423#ifdef NEEDTOPORT 5424 mtx_lock(&ctl_softc->ctl_lock); 5425 5426 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5427 && (lun->flags & CTL_LUN_OFFLINE)) { 5428 /* 5429 * If the LUN is offline, and the on/offline bit isn't set, 5430 * reject the start or stop. Otherwise, let it through. 5431 */ 5432 mtx_unlock(&ctl_softc->ctl_lock); 5433 ctl_set_lun_not_ready(ctsio); 5434 ctl_done((union ctl_io *)ctsio); 5435 } else { 5436 mtx_unlock(&ctl_softc->ctl_lock); 5437#endif /* NEEDTOPORT */ 5438 /* 5439 * This could be a start or a stop when we're online, 5440 * or a stop/offline or start/online. A start or stop when 5441 * we're offline is covered in the case above. 5442 */ 5443 /* 5444 * In the non-immediate case, we send the request to 5445 * the backend and return status to the user when 5446 * it is done. 5447 * 5448 * In the immediate case, we allocate a new ctl_io 5449 * to hold a copy of the request, and send that to 5450 * the backend. We then set good status on the 5451 * user's request and return it immediately. 5452 */ 5453 if (cdb->byte2 & SSS_IMMED) { 5454 union ctl_io *new_io; 5455 5456 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5457 if (new_io == NULL) { 5458 ctl_set_busy(ctsio); 5459 ctl_done((union ctl_io *)ctsio); 5460 } else { 5461 ctl_copy_io((union ctl_io *)ctsio, 5462 new_io); 5463 retval = lun->backend->config_write(new_io); 5464 ctl_set_success(ctsio); 5465 ctl_done((union ctl_io *)ctsio); 5466 } 5467 } else { 5468 retval = lun->backend->config_write( 5469 (union ctl_io *)ctsio); 5470 } 5471#ifdef NEEDTOPORT 5472 } 5473#endif 5474 return (retval); 5475} 5476 5477/* 5478 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5479 * we don't really do anything with the LBA and length fields if the user 5480 * passes them in. Instead we'll just flush out the cache for the entire 5481 * LUN. 5482 */ 5483int 5484ctl_sync_cache(struct ctl_scsiio *ctsio) 5485{ 5486 struct ctl_lun *lun; 5487 struct ctl_softc *ctl_softc; 5488 uint64_t starting_lba; 5489 uint32_t block_count; 5490 int reladr, immed; 5491 int retval; 5492 5493 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5494 5495 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5496 ctl_softc = control_softc; 5497 retval = 0; 5498 reladr = 0; 5499 immed = 0; 5500 5501 switch (ctsio->cdb[0]) { 5502 case SYNCHRONIZE_CACHE: { 5503 struct scsi_sync_cache *cdb; 5504 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5505 5506 if (cdb->byte2 & SSC_RELADR) 5507 reladr = 1; 5508 5509 if (cdb->byte2 & SSC_IMMED) 5510 immed = 1; 5511 5512 starting_lba = scsi_4btoul(cdb->begin_lba); 5513 block_count = scsi_2btoul(cdb->lb_count); 5514 break; 5515 } 5516 case SYNCHRONIZE_CACHE_16: { 5517 struct scsi_sync_cache_16 *cdb; 5518 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5519 5520 if (cdb->byte2 & SSC_RELADR) 5521 reladr = 1; 5522 5523 if (cdb->byte2 & SSC_IMMED) 5524 immed = 1; 5525 5526 starting_lba = scsi_8btou64(cdb->begin_lba); 5527 block_count = scsi_4btoul(cdb->lb_count); 5528 break; 5529 } 5530 default: 5531 ctl_set_invalid_opcode(ctsio); 5532 ctl_done((union ctl_io *)ctsio); 5533 goto bailout; 5534 break; /* NOTREACHED */ 5535 } 5536 5537 if (immed) { 5538 /* 5539 * We don't support the immediate bit. Since it's in the 5540 * same place for the 10 and 16 byte SYNCHRONIZE CACHE 5541 * commands, we can just return the same error in either 5542 * case. 5543 */ 5544 ctl_set_invalid_field(ctsio, 5545 /*sks_valid*/ 1, 5546 /*command*/ 1, 5547 /*field*/ 1, 5548 /*bit_valid*/ 1, 5549 /*bit*/ 1); 5550 ctl_done((union ctl_io *)ctsio); 5551 goto bailout; 5552 } 5553 5554 if (reladr) { 5555 /* 5556 * We don't support the reladr bit either. It can only be 5557 * used with linked commands, and we don't support linked 5558 * commands. Since the bit is in the same place for the 5559 * 10 and 16 byte SYNCHRONIZE CACHE * commands, we can 5560 * just return the same error in either case. 5561 */ 5562 ctl_set_invalid_field(ctsio, 5563 /*sks_valid*/ 1, 5564 /*command*/ 1, 5565 /*field*/ 1, 5566 /*bit_valid*/ 1, 5567 /*bit*/ 0); 5568 ctl_done((union ctl_io *)ctsio); 5569 goto bailout; 5570 } 5571 5572 /* 5573 * We check the LBA and length, but don't do anything with them. 5574 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5575 * get flushed. This check will just help satisfy anyone who wants 5576 * to see an error for an out of range LBA. 5577 */ 5578 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5579 ctl_set_lba_out_of_range(ctsio); 5580 ctl_done((union ctl_io *)ctsio); 5581 goto bailout; 5582 } 5583 5584 /* 5585 * If this LUN has no backend, we can't flush the cache anyway. 5586 */ 5587 if (lun->backend == NULL) { 5588 ctl_set_invalid_opcode(ctsio); 5589 ctl_done((union ctl_io *)ctsio); 5590 goto bailout; 5591 } 5592 5593 /* 5594 * Check to see whether we're configured to send the SYNCHRONIZE 5595 * CACHE command directly to the back end. 5596 */ 5597 mtx_lock(&ctl_softc->ctl_lock); 5598 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5599 && (++(lun->sync_count) >= lun->sync_interval)) { 5600 lun->sync_count = 0; 5601 mtx_unlock(&ctl_softc->ctl_lock); 5602 retval = lun->backend->config_write((union ctl_io *)ctsio); 5603 } else { 5604 mtx_unlock(&ctl_softc->ctl_lock); 5605 ctl_set_success(ctsio); 5606 ctl_done((union ctl_io *)ctsio); 5607 } 5608 5609bailout: 5610 5611 return (retval); 5612} 5613 5614int 5615ctl_format(struct ctl_scsiio *ctsio) 5616{ 5617 struct scsi_format *cdb; 5618 struct ctl_lun *lun; 5619 struct ctl_softc *ctl_softc; 5620 int length, defect_list_len; 5621 5622 CTL_DEBUG_PRINT(("ctl_format\n")); 5623 5624 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5625 ctl_softc = control_softc; 5626 5627 cdb = (struct scsi_format *)ctsio->cdb; 5628 5629 length = 0; 5630 if (cdb->byte2 & SF_FMTDATA) { 5631 if (cdb->byte2 & SF_LONGLIST) 5632 length = sizeof(struct scsi_format_header_long); 5633 else 5634 length = sizeof(struct scsi_format_header_short); 5635 } 5636 5637 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5638 && (length > 0)) { 5639 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5640 ctsio->kern_data_len = length; 5641 ctsio->kern_total_len = length; 5642 ctsio->kern_data_resid = 0; 5643 ctsio->kern_rel_offset = 0; 5644 ctsio->kern_sg_entries = 0; 5645 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5646 ctsio->be_move_done = ctl_config_move_done; 5647 ctl_datamove((union ctl_io *)ctsio); 5648 5649 return (CTL_RETVAL_COMPLETE); 5650 } 5651 5652 defect_list_len = 0; 5653 5654 if (cdb->byte2 & SF_FMTDATA) { 5655 if (cdb->byte2 & SF_LONGLIST) { 5656 struct scsi_format_header_long *header; 5657 5658 header = (struct scsi_format_header_long *) 5659 ctsio->kern_data_ptr; 5660 5661 defect_list_len = scsi_4btoul(header->defect_list_len); 5662 if (defect_list_len != 0) { 5663 ctl_set_invalid_field(ctsio, 5664 /*sks_valid*/ 1, 5665 /*command*/ 0, 5666 /*field*/ 2, 5667 /*bit_valid*/ 0, 5668 /*bit*/ 0); 5669 goto bailout; 5670 } 5671 } else { 5672 struct scsi_format_header_short *header; 5673 5674 header = (struct scsi_format_header_short *) 5675 ctsio->kern_data_ptr; 5676 5677 defect_list_len = scsi_2btoul(header->defect_list_len); 5678 if (defect_list_len != 0) { 5679 ctl_set_invalid_field(ctsio, 5680 /*sks_valid*/ 1, 5681 /*command*/ 0, 5682 /*field*/ 2, 5683 /*bit_valid*/ 0, 5684 /*bit*/ 0); 5685 goto bailout; 5686 } 5687 } 5688 } 5689 5690 /* 5691 * The format command will clear out the "Medium format corrupted" 5692 * status if set by the configuration code. That status is really 5693 * just a way to notify the host that we have lost the media, and 5694 * get them to issue a command that will basically make them think 5695 * they're blowing away the media. 5696 */ 5697 mtx_lock(&ctl_softc->ctl_lock); 5698 lun->flags &= ~CTL_LUN_INOPERABLE; 5699 mtx_unlock(&ctl_softc->ctl_lock); 5700 5701 ctsio->scsi_status = SCSI_STATUS_OK; 5702 ctsio->io_hdr.status = CTL_SUCCESS; 5703bailout: 5704 5705 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5706 free(ctsio->kern_data_ptr, M_CTL); 5707 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5708 } 5709 5710 ctl_done((union ctl_io *)ctsio); 5711 return (CTL_RETVAL_COMPLETE); 5712} 5713 5714int 5715ctl_write_buffer(struct ctl_scsiio *ctsio) 5716{ 5717 struct scsi_write_buffer *cdb; 5718 struct copan_page_header *header; 5719 struct ctl_lun *lun; 5720 struct ctl_softc *ctl_softc; 5721 int buffer_offset, len; 5722 int retval; 5723 5724 header = NULL; 5725 5726 retval = CTL_RETVAL_COMPLETE; 5727 5728 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5729 5730 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5731 ctl_softc = control_softc; 5732 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5733 5734 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5735 ctl_set_invalid_field(ctsio, 5736 /*sks_valid*/ 1, 5737 /*command*/ 1, 5738 /*field*/ 1, 5739 /*bit_valid*/ 1, 5740 /*bit*/ 4); 5741 ctl_done((union ctl_io *)ctsio); 5742 return (CTL_RETVAL_COMPLETE); 5743 } 5744 if (cdb->buffer_id != 0) { 5745 ctl_set_invalid_field(ctsio, 5746 /*sks_valid*/ 1, 5747 /*command*/ 1, 5748 /*field*/ 2, 5749 /*bit_valid*/ 0, 5750 /*bit*/ 0); 5751 ctl_done((union ctl_io *)ctsio); 5752 return (CTL_RETVAL_COMPLETE); 5753 } 5754 5755 len = scsi_3btoul(cdb->length); 5756 buffer_offset = scsi_3btoul(cdb->offset); 5757 5758 if (len > sizeof(lun->write_buffer)) { 5759 ctl_set_invalid_field(ctsio, 5760 /*sks_valid*/ 1, 5761 /*command*/ 1, 5762 /*field*/ 6, 5763 /*bit_valid*/ 0, 5764 /*bit*/ 0); 5765 ctl_done((union ctl_io *)ctsio); 5766 return (CTL_RETVAL_COMPLETE); 5767 } 5768 5769 if (buffer_offset != 0) { 5770 ctl_set_invalid_field(ctsio, 5771 /*sks_valid*/ 1, 5772 /*command*/ 1, 5773 /*field*/ 3, 5774 /*bit_valid*/ 0, 5775 /*bit*/ 0); 5776 ctl_done((union ctl_io *)ctsio); 5777 return (CTL_RETVAL_COMPLETE); 5778 } 5779 5780 /* 5781 * If we've got a kernel request that hasn't been malloced yet, 5782 * malloc it and tell the caller the data buffer is here. 5783 */ 5784 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5785 ctsio->kern_data_ptr = lun->write_buffer; 5786 ctsio->kern_data_len = len; 5787 ctsio->kern_total_len = len; 5788 ctsio->kern_data_resid = 0; 5789 ctsio->kern_rel_offset = 0; 5790 ctsio->kern_sg_entries = 0; 5791 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5792 ctsio->be_move_done = ctl_config_move_done; 5793 ctl_datamove((union ctl_io *)ctsio); 5794 5795 return (CTL_RETVAL_COMPLETE); 5796 } 5797 5798 ctl_done((union ctl_io *)ctsio); 5799 5800 return (CTL_RETVAL_COMPLETE); 5801} 5802 5803int 5804ctl_write_same(struct ctl_scsiio *ctsio) 5805{ 5806 struct ctl_lun *lun; 5807 struct ctl_lba_len_flags *lbalen; 5808 uint64_t lba; 5809 uint32_t num_blocks; 5810 int len, retval; 5811 uint8_t byte2; 5812 5813 retval = CTL_RETVAL_COMPLETE; 5814 5815 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5816 5817 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5818 5819 switch (ctsio->cdb[0]) { 5820 case WRITE_SAME_10: { 5821 struct scsi_write_same_10 *cdb; 5822 5823 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5824 5825 lba = scsi_4btoul(cdb->addr); 5826 num_blocks = scsi_2btoul(cdb->length); 5827 byte2 = cdb->byte2; 5828 break; 5829 } 5830 case WRITE_SAME_16: { 5831 struct scsi_write_same_16 *cdb; 5832 5833 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5834 5835 lba = scsi_8btou64(cdb->addr); 5836 num_blocks = scsi_4btoul(cdb->length); 5837 byte2 = cdb->byte2; 5838 break; 5839 } 5840 default: 5841 /* 5842 * We got a command we don't support. This shouldn't 5843 * happen, commands should be filtered out above us. 5844 */ 5845 ctl_set_invalid_opcode(ctsio); 5846 ctl_done((union ctl_io *)ctsio); 5847 5848 return (CTL_RETVAL_COMPLETE); 5849 break; /* NOTREACHED */ 5850 } 5851 5852 /* 5853 * The first check is to make sure we're in bounds, the second 5854 * check is to catch wrap-around problems. If the lba + num blocks 5855 * is less than the lba, then we've wrapped around and the block 5856 * range is invalid anyway. 5857 */ 5858 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5859 || ((lba + num_blocks) < lba)) { 5860 ctl_set_lba_out_of_range(ctsio); 5861 ctl_done((union ctl_io *)ctsio); 5862 return (CTL_RETVAL_COMPLETE); 5863 } 5864 5865 /* Zero number of blocks means "to the last logical block" */ 5866 if (num_blocks == 0) { 5867 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5868 ctl_set_invalid_field(ctsio, 5869 /*sks_valid*/ 0, 5870 /*command*/ 1, 5871 /*field*/ 0, 5872 /*bit_valid*/ 0, 5873 /*bit*/ 0); 5874 ctl_done((union ctl_io *)ctsio); 5875 return (CTL_RETVAL_COMPLETE); 5876 } 5877 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5878 } 5879 5880 len = lun->be_lun->blocksize; 5881 5882 /* 5883 * If we've got a kernel request that hasn't been malloced yet, 5884 * malloc it and tell the caller the data buffer is here. 5885 */ 5886 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5887 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5888 ctsio->kern_data_len = len; 5889 ctsio->kern_total_len = len; 5890 ctsio->kern_data_resid = 0; 5891 ctsio->kern_rel_offset = 0; 5892 ctsio->kern_sg_entries = 0; 5893 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5894 ctsio->be_move_done = ctl_config_move_done; 5895 ctl_datamove((union ctl_io *)ctsio); 5896 5897 return (CTL_RETVAL_COMPLETE); 5898 } 5899 5900 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5901 lbalen->lba = lba; 5902 lbalen->len = num_blocks; 5903 lbalen->flags = byte2; 5904 retval = lun->backend->config_write((union ctl_io *)ctsio); 5905 5906 return (retval); 5907} 5908 5909int 5910ctl_unmap(struct ctl_scsiio *ctsio) 5911{ 5912 struct ctl_lun *lun; 5913 struct scsi_unmap *cdb; 5914 struct ctl_ptr_len_flags *ptrlen; 5915 struct scsi_unmap_header *hdr; 5916 struct scsi_unmap_desc *buf, *end; 5917 uint64_t lba; 5918 uint32_t num_blocks; 5919 int len, retval; 5920 uint8_t byte2; 5921 5922 retval = CTL_RETVAL_COMPLETE; 5923 5924 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5925 5926 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5927 cdb = (struct scsi_unmap *)ctsio->cdb; 5928 5929 len = scsi_2btoul(cdb->length); 5930 byte2 = cdb->byte2; 5931 5932 /* 5933 * If we've got a kernel request that hasn't been malloced yet, 5934 * malloc it and tell the caller the data buffer is here. 5935 */ 5936 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5937 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5938 ctsio->kern_data_len = len; 5939 ctsio->kern_total_len = len; 5940 ctsio->kern_data_resid = 0; 5941 ctsio->kern_rel_offset = 0; 5942 ctsio->kern_sg_entries = 0; 5943 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5944 ctsio->be_move_done = ctl_config_move_done; 5945 ctl_datamove((union ctl_io *)ctsio); 5946 5947 return (CTL_RETVAL_COMPLETE); 5948 } 5949 5950 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5951 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5952 if (len < sizeof (*hdr) || 5953 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5954 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5955 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5956 ctl_set_invalid_field(ctsio, 5957 /*sks_valid*/ 0, 5958 /*command*/ 0, 5959 /*field*/ 0, 5960 /*bit_valid*/ 0, 5961 /*bit*/ 0); 5962 ctl_done((union ctl_io *)ctsio); 5963 return (CTL_RETVAL_COMPLETE); 5964 } 5965 len = scsi_2btoul(hdr->desc_length); 5966 buf = (struct scsi_unmap_desc *)(hdr + 1); 5967 end = buf + len / sizeof(*buf); 5968 5969 ptrlen = (struct ctl_ptr_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5970 ptrlen->ptr = (void *)buf; 5971 ptrlen->len = len; 5972 ptrlen->flags = byte2; 5973 5974 for (; buf < end; buf++) { 5975 lba = scsi_8btou64(buf->lba); 5976 num_blocks = scsi_4btoul(buf->length); 5977 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5978 || ((lba + num_blocks) < lba)) { 5979 ctl_set_lba_out_of_range(ctsio); 5980 ctl_done((union ctl_io *)ctsio); 5981 return (CTL_RETVAL_COMPLETE); 5982 } 5983 } 5984 5985 retval = lun->backend->config_write((union ctl_io *)ctsio); 5986 5987 return (retval); 5988} 5989 5990/* 5991 * Note that this function currently doesn't actually do anything inside 5992 * CTL to enforce things if the DQue bit is turned on. 5993 * 5994 * Also note that this function can't be used in the default case, because 5995 * the DQue bit isn't set in the changeable mask for the control mode page 5996 * anyway. This is just here as an example for how to implement a page 5997 * handler, and a placeholder in case we want to allow the user to turn 5998 * tagged queueing on and off. 5999 * 6000 * The D_SENSE bit handling is functional, however, and will turn 6001 * descriptor sense on and off for a given LUN. 6002 */ 6003int 6004ctl_control_page_handler(struct ctl_scsiio *ctsio, 6005 struct ctl_page_index *page_index, uint8_t *page_ptr) 6006{ 6007 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6008 struct ctl_lun *lun; 6009 struct ctl_softc *softc; 6010 int set_ua; 6011 uint32_t initidx; 6012 6013 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6014 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6015 set_ua = 0; 6016 6017 user_cp = (struct scsi_control_page *)page_ptr; 6018 current_cp = (struct scsi_control_page *) 6019 (page_index->page_data + (page_index->page_len * 6020 CTL_PAGE_CURRENT)); 6021 saved_cp = (struct scsi_control_page *) 6022 (page_index->page_data + (page_index->page_len * 6023 CTL_PAGE_SAVED)); 6024 6025 softc = control_softc; 6026 6027 mtx_lock(&softc->ctl_lock); 6028 if (((current_cp->rlec & SCP_DSENSE) == 0) 6029 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6030 /* 6031 * Descriptor sense is currently turned off and the user 6032 * wants to turn it on. 6033 */ 6034 current_cp->rlec |= SCP_DSENSE; 6035 saved_cp->rlec |= SCP_DSENSE; 6036 lun->flags |= CTL_LUN_SENSE_DESC; 6037 set_ua = 1; 6038 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6039 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6040 /* 6041 * Descriptor sense is currently turned on, and the user 6042 * wants to turn it off. 6043 */ 6044 current_cp->rlec &= ~SCP_DSENSE; 6045 saved_cp->rlec &= ~SCP_DSENSE; 6046 lun->flags &= ~CTL_LUN_SENSE_DESC; 6047 set_ua = 1; 6048 } 6049 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6050 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6051#ifdef NEEDTOPORT 6052 csevent_log(CSC_CTL | CSC_SHELF_SW | 6053 CTL_UNTAG_TO_UNTAG, 6054 csevent_LogType_Trace, 6055 csevent_Severity_Information, 6056 csevent_AlertLevel_Green, 6057 csevent_FRU_Firmware, 6058 csevent_FRU_Unknown, 6059 "Received untagged to untagged transition"); 6060#endif /* NEEDTOPORT */ 6061 } else { 6062#ifdef NEEDTOPORT 6063 csevent_log(CSC_CTL | CSC_SHELF_SW | 6064 CTL_UNTAG_TO_TAG, 6065 csevent_LogType_ConfigChange, 6066 csevent_Severity_Information, 6067 csevent_AlertLevel_Green, 6068 csevent_FRU_Firmware, 6069 csevent_FRU_Unknown, 6070 "Received untagged to tagged " 6071 "queueing transition"); 6072#endif /* NEEDTOPORT */ 6073 6074 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6075 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6076 set_ua = 1; 6077 } 6078 } else { 6079 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6080#ifdef NEEDTOPORT 6081 csevent_log(CSC_CTL | CSC_SHELF_SW | 6082 CTL_TAG_TO_UNTAG, 6083 csevent_LogType_ConfigChange, 6084 csevent_Severity_Warning, 6085 csevent_AlertLevel_Yellow, 6086 csevent_FRU_Firmware, 6087 csevent_FRU_Unknown, 6088 "Received tagged queueing to untagged " 6089 "transition"); 6090#endif /* NEEDTOPORT */ 6091 6092 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6093 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6094 set_ua = 1; 6095 } else { 6096#ifdef NEEDTOPORT 6097 csevent_log(CSC_CTL | CSC_SHELF_SW | 6098 CTL_TAG_TO_TAG, 6099 csevent_LogType_Trace, 6100 csevent_Severity_Information, 6101 csevent_AlertLevel_Green, 6102 csevent_FRU_Firmware, 6103 csevent_FRU_Unknown, 6104 "Received tagged queueing to tagged " 6105 "queueing transition"); 6106#endif /* NEEDTOPORT */ 6107 } 6108 } 6109 if (set_ua != 0) { 6110 int i; 6111 /* 6112 * Let other initiators know that the mode 6113 * parameters for this LUN have changed. 6114 */ 6115 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6116 if (i == initidx) 6117 continue; 6118 6119 lun->pending_sense[i].ua_pending |= 6120 CTL_UA_MODE_CHANGE; 6121 } 6122 } 6123 mtx_unlock(&softc->ctl_lock); 6124 6125 return (0); 6126} 6127 6128int 6129ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6130 struct ctl_page_index *page_index, uint8_t *page_ptr) 6131{ 6132 return (0); 6133} 6134 6135int 6136ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6137 struct ctl_page_index *page_index, int pc) 6138{ 6139 struct copan_power_subpage *page; 6140 6141 page = (struct copan_power_subpage *)page_index->page_data + 6142 (page_index->page_len * pc); 6143 6144 switch (pc) { 6145 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6146 /* 6147 * We don't update the changable bits for this page. 6148 */ 6149 break; 6150 case SMS_PAGE_CTRL_CURRENT >> 6: 6151 case SMS_PAGE_CTRL_DEFAULT >> 6: 6152 case SMS_PAGE_CTRL_SAVED >> 6: 6153#ifdef NEEDTOPORT 6154 ctl_update_power_subpage(page); 6155#endif 6156 break; 6157 default: 6158#ifdef NEEDTOPORT 6159 EPRINT(0, "Invalid PC %d!!", pc); 6160#endif 6161 break; 6162 } 6163 return (0); 6164} 6165 6166 6167int 6168ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6169 struct ctl_page_index *page_index, uint8_t *page_ptr) 6170{ 6171 struct copan_aps_subpage *user_sp; 6172 struct copan_aps_subpage *current_sp; 6173 union ctl_modepage_info *modepage_info; 6174 struct ctl_softc *softc; 6175 struct ctl_lun *lun; 6176 int retval; 6177 6178 retval = CTL_RETVAL_COMPLETE; 6179 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6180 (page_index->page_len * CTL_PAGE_CURRENT)); 6181 softc = control_softc; 6182 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6183 6184 user_sp = (struct copan_aps_subpage *)page_ptr; 6185 6186 modepage_info = (union ctl_modepage_info *) 6187 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6188 6189 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6190 modepage_info->header.subpage = page_index->subpage; 6191 modepage_info->aps.lock_active = user_sp->lock_active; 6192 6193 mtx_lock(&softc->ctl_lock); 6194 6195 /* 6196 * If there is a request to lock the LUN and another LUN is locked 6197 * this is an error. If the requested LUN is already locked ignore 6198 * the request. If no LUN is locked attempt to lock it. 6199 * if there is a request to unlock the LUN and the LUN is currently 6200 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6201 * if another LUN is locked or no LUN is locked. 6202 */ 6203 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6204 if (softc->aps_locked_lun == lun->lun) { 6205 /* 6206 * This LUN is already locked, so we're done. 6207 */ 6208 retval = CTL_RETVAL_COMPLETE; 6209 } else if (softc->aps_locked_lun == 0) { 6210 /* 6211 * No one has the lock, pass the request to the 6212 * backend. 6213 */ 6214 retval = lun->backend->config_write( 6215 (union ctl_io *)ctsio); 6216 } else { 6217 /* 6218 * Someone else has the lock, throw out the request. 6219 */ 6220 ctl_set_already_locked(ctsio); 6221 free(ctsio->kern_data_ptr, M_CTL); 6222 ctl_done((union ctl_io *)ctsio); 6223 6224 /* 6225 * Set the return value so that ctl_do_mode_select() 6226 * won't try to complete the command. We already 6227 * completed it here. 6228 */ 6229 retval = CTL_RETVAL_ERROR; 6230 } 6231 } else if (softc->aps_locked_lun == lun->lun) { 6232 /* 6233 * This LUN is locked, so pass the unlock request to the 6234 * backend. 6235 */ 6236 retval = lun->backend->config_write((union ctl_io *)ctsio); 6237 } 6238 mtx_unlock(&softc->ctl_lock); 6239 6240 return (retval); 6241} 6242 6243int 6244ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6245 struct ctl_page_index *page_index, 6246 uint8_t *page_ptr) 6247{ 6248 uint8_t *c; 6249 int i; 6250 6251 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6252 ctl_time_io_secs = 6253 (c[0] << 8) | 6254 (c[1] << 0) | 6255 0; 6256 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6257 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6258 printf("page data:"); 6259 for (i=0; i<8; i++) 6260 printf(" %.2x",page_ptr[i]); 6261 printf("\n"); 6262 return (0); 6263} 6264 6265int 6266ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6267 struct ctl_page_index *page_index, 6268 int pc) 6269{ 6270 struct copan_debugconf_subpage *page; 6271 6272 page = (struct copan_debugconf_subpage *)page_index->page_data + 6273 (page_index->page_len * pc); 6274 6275 switch (pc) { 6276 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6277 case SMS_PAGE_CTRL_DEFAULT >> 6: 6278 case SMS_PAGE_CTRL_SAVED >> 6: 6279 /* 6280 * We don't update the changable or default bits for this page. 6281 */ 6282 break; 6283 case SMS_PAGE_CTRL_CURRENT >> 6: 6284 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6285 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6286 break; 6287 default: 6288#ifdef NEEDTOPORT 6289 EPRINT(0, "Invalid PC %d!!", pc); 6290#endif /* NEEDTOPORT */ 6291 break; 6292 } 6293 return (0); 6294} 6295 6296 6297static int 6298ctl_do_mode_select(union ctl_io *io) 6299{ 6300 struct scsi_mode_page_header *page_header; 6301 struct ctl_page_index *page_index; 6302 struct ctl_scsiio *ctsio; 6303 int control_dev, page_len; 6304 int page_len_offset, page_len_size; 6305 union ctl_modepage_info *modepage_info; 6306 struct ctl_lun *lun; 6307 int *len_left, *len_used; 6308 int retval, i; 6309 6310 ctsio = &io->scsiio; 6311 page_index = NULL; 6312 page_len = 0; 6313 retval = CTL_RETVAL_COMPLETE; 6314 6315 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6316 6317 if (lun->be_lun->lun_type != T_DIRECT) 6318 control_dev = 1; 6319 else 6320 control_dev = 0; 6321 6322 modepage_info = (union ctl_modepage_info *) 6323 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6324 len_left = &modepage_info->header.len_left; 6325 len_used = &modepage_info->header.len_used; 6326 6327do_next_page: 6328 6329 page_header = (struct scsi_mode_page_header *) 6330 (ctsio->kern_data_ptr + *len_used); 6331 6332 if (*len_left == 0) { 6333 free(ctsio->kern_data_ptr, M_CTL); 6334 ctl_set_success(ctsio); 6335 ctl_done((union ctl_io *)ctsio); 6336 return (CTL_RETVAL_COMPLETE); 6337 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6338 6339 free(ctsio->kern_data_ptr, M_CTL); 6340 ctl_set_param_len_error(ctsio); 6341 ctl_done((union ctl_io *)ctsio); 6342 return (CTL_RETVAL_COMPLETE); 6343 6344 } else if ((page_header->page_code & SMPH_SPF) 6345 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6346 6347 free(ctsio->kern_data_ptr, M_CTL); 6348 ctl_set_param_len_error(ctsio); 6349 ctl_done((union ctl_io *)ctsio); 6350 return (CTL_RETVAL_COMPLETE); 6351 } 6352 6353 6354 /* 6355 * XXX KDM should we do something with the block descriptor? 6356 */ 6357 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6358 6359 if ((control_dev != 0) 6360 && (lun->mode_pages.index[i].page_flags & 6361 CTL_PAGE_FLAG_DISK_ONLY)) 6362 continue; 6363 6364 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6365 (page_header->page_code & SMPH_PC_MASK)) 6366 continue; 6367 6368 /* 6369 * If neither page has a subpage code, then we've got a 6370 * match. 6371 */ 6372 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6373 && ((page_header->page_code & SMPH_SPF) == 0)) { 6374 page_index = &lun->mode_pages.index[i]; 6375 page_len = page_header->page_length; 6376 break; 6377 } 6378 6379 /* 6380 * If both pages have subpages, then the subpage numbers 6381 * have to match. 6382 */ 6383 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6384 && (page_header->page_code & SMPH_SPF)) { 6385 struct scsi_mode_page_header_sp *sph; 6386 6387 sph = (struct scsi_mode_page_header_sp *)page_header; 6388 6389 if (lun->mode_pages.index[i].subpage == 6390 sph->subpage) { 6391 page_index = &lun->mode_pages.index[i]; 6392 page_len = scsi_2btoul(sph->page_length); 6393 break; 6394 } 6395 } 6396 } 6397 6398 /* 6399 * If we couldn't find the page, or if we don't have a mode select 6400 * handler for it, send back an error to the user. 6401 */ 6402 if ((page_index == NULL) 6403 || (page_index->select_handler == NULL)) { 6404 ctl_set_invalid_field(ctsio, 6405 /*sks_valid*/ 1, 6406 /*command*/ 0, 6407 /*field*/ *len_used, 6408 /*bit_valid*/ 0, 6409 /*bit*/ 0); 6410 free(ctsio->kern_data_ptr, M_CTL); 6411 ctl_done((union ctl_io *)ctsio); 6412 return (CTL_RETVAL_COMPLETE); 6413 } 6414 6415 if (page_index->page_code & SMPH_SPF) { 6416 page_len_offset = 2; 6417 page_len_size = 2; 6418 } else { 6419 page_len_size = 1; 6420 page_len_offset = 1; 6421 } 6422 6423 /* 6424 * If the length the initiator gives us isn't the one we specify in 6425 * the mode page header, or if they didn't specify enough data in 6426 * the CDB to avoid truncating this page, kick out the request. 6427 */ 6428 if ((page_len != (page_index->page_len - page_len_offset - 6429 page_len_size)) 6430 || (*len_left < page_index->page_len)) { 6431 6432 6433 ctl_set_invalid_field(ctsio, 6434 /*sks_valid*/ 1, 6435 /*command*/ 0, 6436 /*field*/ *len_used + page_len_offset, 6437 /*bit_valid*/ 0, 6438 /*bit*/ 0); 6439 free(ctsio->kern_data_ptr, M_CTL); 6440 ctl_done((union ctl_io *)ctsio); 6441 return (CTL_RETVAL_COMPLETE); 6442 } 6443 6444 /* 6445 * Run through the mode page, checking to make sure that the bits 6446 * the user changed are actually legal for him to change. 6447 */ 6448 for (i = 0; i < page_index->page_len; i++) { 6449 uint8_t *user_byte, *change_mask, *current_byte; 6450 int bad_bit; 6451 int j; 6452 6453 user_byte = (uint8_t *)page_header + i; 6454 change_mask = page_index->page_data + 6455 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6456 current_byte = page_index->page_data + 6457 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6458 6459 /* 6460 * Check to see whether the user set any bits in this byte 6461 * that he is not allowed to set. 6462 */ 6463 if ((*user_byte & ~(*change_mask)) == 6464 (*current_byte & ~(*change_mask))) 6465 continue; 6466 6467 /* 6468 * Go through bit by bit to determine which one is illegal. 6469 */ 6470 bad_bit = 0; 6471 for (j = 7; j >= 0; j--) { 6472 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6473 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6474 bad_bit = i; 6475 break; 6476 } 6477 } 6478 ctl_set_invalid_field(ctsio, 6479 /*sks_valid*/ 1, 6480 /*command*/ 0, 6481 /*field*/ *len_used + i, 6482 /*bit_valid*/ 1, 6483 /*bit*/ bad_bit); 6484 free(ctsio->kern_data_ptr, M_CTL); 6485 ctl_done((union ctl_io *)ctsio); 6486 return (CTL_RETVAL_COMPLETE); 6487 } 6488 6489 /* 6490 * Decrement these before we call the page handler, since we may 6491 * end up getting called back one way or another before the handler 6492 * returns to this context. 6493 */ 6494 *len_left -= page_index->page_len; 6495 *len_used += page_index->page_len; 6496 6497 retval = page_index->select_handler(ctsio, page_index, 6498 (uint8_t *)page_header); 6499 6500 /* 6501 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6502 * wait until this queued command completes to finish processing 6503 * the mode page. If it returns anything other than 6504 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6505 * already set the sense information, freed the data pointer, and 6506 * completed the io for us. 6507 */ 6508 if (retval != CTL_RETVAL_COMPLETE) 6509 goto bailout_no_done; 6510 6511 /* 6512 * If the initiator sent us more than one page, parse the next one. 6513 */ 6514 if (*len_left > 0) 6515 goto do_next_page; 6516 6517 ctl_set_success(ctsio); 6518 free(ctsio->kern_data_ptr, M_CTL); 6519 ctl_done((union ctl_io *)ctsio); 6520 6521bailout_no_done: 6522 6523 return (CTL_RETVAL_COMPLETE); 6524 6525} 6526 6527int 6528ctl_mode_select(struct ctl_scsiio *ctsio) 6529{ 6530 int param_len, pf, sp; 6531 int header_size, bd_len; 6532 int len_left, len_used; 6533 struct ctl_page_index *page_index; 6534 struct ctl_lun *lun; 6535 int control_dev, page_len; 6536 union ctl_modepage_info *modepage_info; 6537 int retval; 6538 6539 pf = 0; 6540 sp = 0; 6541 page_len = 0; 6542 len_used = 0; 6543 len_left = 0; 6544 retval = 0; 6545 bd_len = 0; 6546 page_index = NULL; 6547 6548 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6549 6550 if (lun->be_lun->lun_type != T_DIRECT) 6551 control_dev = 1; 6552 else 6553 control_dev = 0; 6554 6555 switch (ctsio->cdb[0]) { 6556 case MODE_SELECT_6: { 6557 struct scsi_mode_select_6 *cdb; 6558 6559 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6560 6561 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6562 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6563 6564 param_len = cdb->length; 6565 header_size = sizeof(struct scsi_mode_header_6); 6566 break; 6567 } 6568 case MODE_SELECT_10: { 6569 struct scsi_mode_select_10 *cdb; 6570 6571 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6572 6573 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6574 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6575 6576 param_len = scsi_2btoul(cdb->length); 6577 header_size = sizeof(struct scsi_mode_header_10); 6578 break; 6579 } 6580 default: 6581 ctl_set_invalid_opcode(ctsio); 6582 ctl_done((union ctl_io *)ctsio); 6583 return (CTL_RETVAL_COMPLETE); 6584 break; /* NOTREACHED */ 6585 } 6586 6587 /* 6588 * From SPC-3: 6589 * "A parameter list length of zero indicates that the Data-Out Buffer 6590 * shall be empty. This condition shall not be considered as an error." 6591 */ 6592 if (param_len == 0) { 6593 ctl_set_success(ctsio); 6594 ctl_done((union ctl_io *)ctsio); 6595 return (CTL_RETVAL_COMPLETE); 6596 } 6597 6598 /* 6599 * Since we'll hit this the first time through, prior to 6600 * allocation, we don't need to free a data buffer here. 6601 */ 6602 if (param_len < header_size) { 6603 ctl_set_param_len_error(ctsio); 6604 ctl_done((union ctl_io *)ctsio); 6605 return (CTL_RETVAL_COMPLETE); 6606 } 6607 6608 /* 6609 * Allocate the data buffer and grab the user's data. In theory, 6610 * we shouldn't have to sanity check the parameter list length here 6611 * because the maximum size is 64K. We should be able to malloc 6612 * that much without too many problems. 6613 */ 6614 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6615 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6616 ctsio->kern_data_len = param_len; 6617 ctsio->kern_total_len = param_len; 6618 ctsio->kern_data_resid = 0; 6619 ctsio->kern_rel_offset = 0; 6620 ctsio->kern_sg_entries = 0; 6621 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6622 ctsio->be_move_done = ctl_config_move_done; 6623 ctl_datamove((union ctl_io *)ctsio); 6624 6625 return (CTL_RETVAL_COMPLETE); 6626 } 6627 6628 switch (ctsio->cdb[0]) { 6629 case MODE_SELECT_6: { 6630 struct scsi_mode_header_6 *mh6; 6631 6632 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6633 bd_len = mh6->blk_desc_len; 6634 break; 6635 } 6636 case MODE_SELECT_10: { 6637 struct scsi_mode_header_10 *mh10; 6638 6639 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6640 bd_len = scsi_2btoul(mh10->blk_desc_len); 6641 break; 6642 } 6643 default: 6644 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6645 break; 6646 } 6647 6648 if (param_len < (header_size + bd_len)) { 6649 free(ctsio->kern_data_ptr, M_CTL); 6650 ctl_set_param_len_error(ctsio); 6651 ctl_done((union ctl_io *)ctsio); 6652 return (CTL_RETVAL_COMPLETE); 6653 } 6654 6655 /* 6656 * Set the IO_CONT flag, so that if this I/O gets passed to 6657 * ctl_config_write_done(), it'll get passed back to 6658 * ctl_do_mode_select() for further processing, or completion if 6659 * we're all done. 6660 */ 6661 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6662 ctsio->io_cont = ctl_do_mode_select; 6663 6664 modepage_info = (union ctl_modepage_info *) 6665 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6666 6667 memset(modepage_info, 0, sizeof(*modepage_info)); 6668 6669 len_left = param_len - header_size - bd_len; 6670 len_used = header_size + bd_len; 6671 6672 modepage_info->header.len_left = len_left; 6673 modepage_info->header.len_used = len_used; 6674 6675 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6676} 6677 6678int 6679ctl_mode_sense(struct ctl_scsiio *ctsio) 6680{ 6681 struct ctl_lun *lun; 6682 int pc, page_code, dbd, llba, subpage; 6683 int alloc_len, page_len, header_len, total_len; 6684 struct scsi_mode_block_descr *block_desc; 6685 struct ctl_page_index *page_index; 6686 int control_dev; 6687 6688 dbd = 0; 6689 llba = 0; 6690 block_desc = NULL; 6691 page_index = NULL; 6692 6693 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6694 6695 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6696 6697 if (lun->be_lun->lun_type != T_DIRECT) 6698 control_dev = 1; 6699 else 6700 control_dev = 0; 6701 6702 switch (ctsio->cdb[0]) { 6703 case MODE_SENSE_6: { 6704 struct scsi_mode_sense_6 *cdb; 6705 6706 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6707 6708 header_len = sizeof(struct scsi_mode_hdr_6); 6709 if (cdb->byte2 & SMS_DBD) 6710 dbd = 1; 6711 else 6712 header_len += sizeof(struct scsi_mode_block_descr); 6713 6714 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6715 page_code = cdb->page & SMS_PAGE_CODE; 6716 subpage = cdb->subpage; 6717 alloc_len = cdb->length; 6718 break; 6719 } 6720 case MODE_SENSE_10: { 6721 struct scsi_mode_sense_10 *cdb; 6722 6723 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6724 6725 header_len = sizeof(struct scsi_mode_hdr_10); 6726 6727 if (cdb->byte2 & SMS_DBD) 6728 dbd = 1; 6729 else 6730 header_len += sizeof(struct scsi_mode_block_descr); 6731 if (cdb->byte2 & SMS10_LLBAA) 6732 llba = 1; 6733 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6734 page_code = cdb->page & SMS_PAGE_CODE; 6735 subpage = cdb->subpage; 6736 alloc_len = scsi_2btoul(cdb->length); 6737 break; 6738 } 6739 default: 6740 ctl_set_invalid_opcode(ctsio); 6741 ctl_done((union ctl_io *)ctsio); 6742 return (CTL_RETVAL_COMPLETE); 6743 break; /* NOTREACHED */ 6744 } 6745 6746 /* 6747 * We have to make a first pass through to calculate the size of 6748 * the pages that match the user's query. Then we allocate enough 6749 * memory to hold it, and actually copy the data into the buffer. 6750 */ 6751 switch (page_code) { 6752 case SMS_ALL_PAGES_PAGE: { 6753 int i; 6754 6755 page_len = 0; 6756 6757 /* 6758 * At the moment, values other than 0 and 0xff here are 6759 * reserved according to SPC-3. 6760 */ 6761 if ((subpage != SMS_SUBPAGE_PAGE_0) 6762 && (subpage != SMS_SUBPAGE_ALL)) { 6763 ctl_set_invalid_field(ctsio, 6764 /*sks_valid*/ 1, 6765 /*command*/ 1, 6766 /*field*/ 3, 6767 /*bit_valid*/ 0, 6768 /*bit*/ 0); 6769 ctl_done((union ctl_io *)ctsio); 6770 return (CTL_RETVAL_COMPLETE); 6771 } 6772 6773 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6774 if ((control_dev != 0) 6775 && (lun->mode_pages.index[i].page_flags & 6776 CTL_PAGE_FLAG_DISK_ONLY)) 6777 continue; 6778 6779 /* 6780 * We don't use this subpage if the user didn't 6781 * request all subpages. 6782 */ 6783 if ((lun->mode_pages.index[i].subpage != 0) 6784 && (subpage == SMS_SUBPAGE_PAGE_0)) 6785 continue; 6786 6787#if 0 6788 printf("found page %#x len %d\n", 6789 lun->mode_pages.index[i].page_code & 6790 SMPH_PC_MASK, 6791 lun->mode_pages.index[i].page_len); 6792#endif 6793 page_len += lun->mode_pages.index[i].page_len; 6794 } 6795 break; 6796 } 6797 default: { 6798 int i; 6799 6800 page_len = 0; 6801 6802 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6803 /* Look for the right page code */ 6804 if ((lun->mode_pages.index[i].page_code & 6805 SMPH_PC_MASK) != page_code) 6806 continue; 6807 6808 /* Look for the right subpage or the subpage wildcard*/ 6809 if ((lun->mode_pages.index[i].subpage != subpage) 6810 && (subpage != SMS_SUBPAGE_ALL)) 6811 continue; 6812 6813 /* Make sure the page is supported for this dev type */ 6814 if ((control_dev != 0) 6815 && (lun->mode_pages.index[i].page_flags & 6816 CTL_PAGE_FLAG_DISK_ONLY)) 6817 continue; 6818 6819#if 0 6820 printf("found page %#x len %d\n", 6821 lun->mode_pages.index[i].page_code & 6822 SMPH_PC_MASK, 6823 lun->mode_pages.index[i].page_len); 6824#endif 6825 6826 page_len += lun->mode_pages.index[i].page_len; 6827 } 6828 6829 if (page_len == 0) { 6830 ctl_set_invalid_field(ctsio, 6831 /*sks_valid*/ 1, 6832 /*command*/ 1, 6833 /*field*/ 2, 6834 /*bit_valid*/ 1, 6835 /*bit*/ 5); 6836 ctl_done((union ctl_io *)ctsio); 6837 return (CTL_RETVAL_COMPLETE); 6838 } 6839 break; 6840 } 6841 } 6842 6843 total_len = header_len + page_len; 6844#if 0 6845 printf("header_len = %d, page_len = %d, total_len = %d\n", 6846 header_len, page_len, total_len); 6847#endif 6848 6849 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6850 ctsio->kern_sg_entries = 0; 6851 ctsio->kern_data_resid = 0; 6852 ctsio->kern_rel_offset = 0; 6853 if (total_len < alloc_len) { 6854 ctsio->residual = alloc_len - total_len; 6855 ctsio->kern_data_len = total_len; 6856 ctsio->kern_total_len = total_len; 6857 } else { 6858 ctsio->residual = 0; 6859 ctsio->kern_data_len = alloc_len; 6860 ctsio->kern_total_len = alloc_len; 6861 } 6862 6863 switch (ctsio->cdb[0]) { 6864 case MODE_SENSE_6: { 6865 struct scsi_mode_hdr_6 *header; 6866 6867 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6868 6869 header->datalen = ctl_min(total_len - 1, 254); 6870 6871 if (dbd) 6872 header->block_descr_len = 0; 6873 else 6874 header->block_descr_len = 6875 sizeof(struct scsi_mode_block_descr); 6876 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6877 break; 6878 } 6879 case MODE_SENSE_10: { 6880 struct scsi_mode_hdr_10 *header; 6881 int datalen; 6882 6883 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6884 6885 datalen = ctl_min(total_len - 2, 65533); 6886 scsi_ulto2b(datalen, header->datalen); 6887 if (dbd) 6888 scsi_ulto2b(0, header->block_descr_len); 6889 else 6890 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6891 header->block_descr_len); 6892 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6893 break; 6894 } 6895 default: 6896 panic("invalid CDB type %#x", ctsio->cdb[0]); 6897 break; /* NOTREACHED */ 6898 } 6899 6900 /* 6901 * If we've got a disk, use its blocksize in the block 6902 * descriptor. Otherwise, just set it to 0. 6903 */ 6904 if (dbd == 0) { 6905 if (control_dev != 0) 6906 scsi_ulto3b(lun->be_lun->blocksize, 6907 block_desc->block_len); 6908 else 6909 scsi_ulto3b(0, block_desc->block_len); 6910 } 6911 6912 switch (page_code) { 6913 case SMS_ALL_PAGES_PAGE: { 6914 int i, data_used; 6915 6916 data_used = header_len; 6917 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6918 struct ctl_page_index *page_index; 6919 6920 page_index = &lun->mode_pages.index[i]; 6921 6922 if ((control_dev != 0) 6923 && (page_index->page_flags & 6924 CTL_PAGE_FLAG_DISK_ONLY)) 6925 continue; 6926 6927 /* 6928 * We don't use this subpage if the user didn't 6929 * request all subpages. We already checked (above) 6930 * to make sure the user only specified a subpage 6931 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6932 */ 6933 if ((page_index->subpage != 0) 6934 && (subpage == SMS_SUBPAGE_PAGE_0)) 6935 continue; 6936 6937 /* 6938 * Call the handler, if it exists, to update the 6939 * page to the latest values. 6940 */ 6941 if (page_index->sense_handler != NULL) 6942 page_index->sense_handler(ctsio, page_index,pc); 6943 6944 memcpy(ctsio->kern_data_ptr + data_used, 6945 page_index->page_data + 6946 (page_index->page_len * pc), 6947 page_index->page_len); 6948 data_used += page_index->page_len; 6949 } 6950 break; 6951 } 6952 default: { 6953 int i, data_used; 6954 6955 data_used = header_len; 6956 6957 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6958 struct ctl_page_index *page_index; 6959 6960 page_index = &lun->mode_pages.index[i]; 6961 6962 /* Look for the right page code */ 6963 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6964 continue; 6965 6966 /* Look for the right subpage or the subpage wildcard*/ 6967 if ((page_index->subpage != subpage) 6968 && (subpage != SMS_SUBPAGE_ALL)) 6969 continue; 6970 6971 /* Make sure the page is supported for this dev type */ 6972 if ((control_dev != 0) 6973 && (page_index->page_flags & 6974 CTL_PAGE_FLAG_DISK_ONLY)) 6975 continue; 6976 6977 /* 6978 * Call the handler, if it exists, to update the 6979 * page to the latest values. 6980 */ 6981 if (page_index->sense_handler != NULL) 6982 page_index->sense_handler(ctsio, page_index,pc); 6983 6984 memcpy(ctsio->kern_data_ptr + data_used, 6985 page_index->page_data + 6986 (page_index->page_len * pc), 6987 page_index->page_len); 6988 data_used += page_index->page_len; 6989 } 6990 break; 6991 } 6992 } 6993 6994 ctsio->scsi_status = SCSI_STATUS_OK; 6995 6996 ctsio->be_move_done = ctl_config_move_done; 6997 ctl_datamove((union ctl_io *)ctsio); 6998 6999 return (CTL_RETVAL_COMPLETE); 7000} 7001 7002int 7003ctl_read_capacity(struct ctl_scsiio *ctsio) 7004{ 7005 struct scsi_read_capacity *cdb; 7006 struct scsi_read_capacity_data *data; 7007 struct ctl_lun *lun; 7008 uint32_t lba; 7009 7010 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7011 7012 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7013 7014 lba = scsi_4btoul(cdb->addr); 7015 if (((cdb->pmi & SRC_PMI) == 0) 7016 && (lba != 0)) { 7017 ctl_set_invalid_field(/*ctsio*/ ctsio, 7018 /*sks_valid*/ 1, 7019 /*command*/ 1, 7020 /*field*/ 2, 7021 /*bit_valid*/ 0, 7022 /*bit*/ 0); 7023 ctl_done((union ctl_io *)ctsio); 7024 return (CTL_RETVAL_COMPLETE); 7025 } 7026 7027 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7028 7029 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7030 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7031 ctsio->residual = 0; 7032 ctsio->kern_data_len = sizeof(*data); 7033 ctsio->kern_total_len = sizeof(*data); 7034 ctsio->kern_data_resid = 0; 7035 ctsio->kern_rel_offset = 0; 7036 ctsio->kern_sg_entries = 0; 7037 7038 /* 7039 * If the maximum LBA is greater than 0xfffffffe, the user must 7040 * issue a SERVICE ACTION IN (16) command, with the read capacity 7041 * serivce action set. 7042 */ 7043 if (lun->be_lun->maxlba > 0xfffffffe) 7044 scsi_ulto4b(0xffffffff, data->addr); 7045 else 7046 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7047 7048 /* 7049 * XXX KDM this may not be 512 bytes... 7050 */ 7051 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7052 7053 ctsio->scsi_status = SCSI_STATUS_OK; 7054 7055 ctsio->be_move_done = ctl_config_move_done; 7056 ctl_datamove((union ctl_io *)ctsio); 7057 7058 return (CTL_RETVAL_COMPLETE); 7059} 7060 7061static int 7062ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7063{ 7064 struct scsi_read_capacity_16 *cdb; 7065 struct scsi_read_capacity_data_long *data; 7066 struct ctl_lun *lun; 7067 uint64_t lba; 7068 uint32_t alloc_len; 7069 7070 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7071 7072 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7073 7074 alloc_len = scsi_4btoul(cdb->alloc_len); 7075 lba = scsi_8btou64(cdb->addr); 7076 7077 if ((cdb->reladr & SRC16_PMI) 7078 && (lba != 0)) { 7079 ctl_set_invalid_field(/*ctsio*/ ctsio, 7080 /*sks_valid*/ 1, 7081 /*command*/ 1, 7082 /*field*/ 2, 7083 /*bit_valid*/ 0, 7084 /*bit*/ 0); 7085 ctl_done((union ctl_io *)ctsio); 7086 return (CTL_RETVAL_COMPLETE); 7087 } 7088 7089 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7090 7091 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7092 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7093 7094 if (sizeof(*data) < alloc_len) { 7095 ctsio->residual = alloc_len - sizeof(*data); 7096 ctsio->kern_data_len = sizeof(*data); 7097 ctsio->kern_total_len = sizeof(*data); 7098 } else { 7099 ctsio->residual = 0; 7100 ctsio->kern_data_len = alloc_len; 7101 ctsio->kern_total_len = alloc_len; 7102 } 7103 ctsio->kern_data_resid = 0; 7104 ctsio->kern_rel_offset = 0; 7105 ctsio->kern_sg_entries = 0; 7106 7107 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7108 /* XXX KDM this may not be 512 bytes... */ 7109 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7110 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7111 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7112 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7113 data->lalba_lbp[0] |= SRC16_LBPME; 7114 7115 ctsio->scsi_status = SCSI_STATUS_OK; 7116 7117 ctsio->be_move_done = ctl_config_move_done; 7118 ctl_datamove((union ctl_io *)ctsio); 7119 7120 return (CTL_RETVAL_COMPLETE); 7121} 7122 7123int 7124ctl_service_action_in(struct ctl_scsiio *ctsio) 7125{ 7126 struct scsi_service_action_in *cdb; 7127 int retval; 7128 7129 CTL_DEBUG_PRINT(("ctl_service_action_in\n")); 7130 7131 cdb = (struct scsi_service_action_in *)ctsio->cdb; 7132 7133 retval = CTL_RETVAL_COMPLETE; 7134 7135 switch (cdb->service_action) { 7136 case SRC16_SERVICE_ACTION: 7137 retval = ctl_read_capacity_16(ctsio); 7138 break; 7139 default: 7140 ctl_set_invalid_field(/*ctsio*/ ctsio, 7141 /*sks_valid*/ 1, 7142 /*command*/ 1, 7143 /*field*/ 1, 7144 /*bit_valid*/ 1, 7145 /*bit*/ 4); 7146 ctl_done((union ctl_io *)ctsio); 7147 break; 7148 } 7149 7150 return (retval); 7151} 7152 7153int 7154ctl_maintenance_in(struct ctl_scsiio *ctsio) 7155{ 7156 struct scsi_maintenance_in *cdb; 7157 int retval; 7158 int alloc_len, total_len = 0; 7159 int num_target_port_groups, single; 7160 struct ctl_lun *lun; 7161 struct ctl_softc *softc; 7162 struct scsi_target_group_data *rtg_ptr; 7163 struct scsi_target_port_group_descriptor *tpg_desc_ptr1, *tpg_desc_ptr2; 7164 struct scsi_target_port_descriptor *tp_desc_ptr1_1, *tp_desc_ptr1_2, 7165 *tp_desc_ptr2_1, *tp_desc_ptr2_2; 7166 7167 CTL_DEBUG_PRINT(("ctl_maintenance_in\n")); 7168 7169 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7170 softc = control_softc; 7171 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7172 7173 retval = CTL_RETVAL_COMPLETE; 7174 7175 if ((cdb->byte2 & SERVICE_ACTION_MASK) != SA_RPRT_TRGT_GRP) { 7176 ctl_set_invalid_field(/*ctsio*/ ctsio, 7177 /*sks_valid*/ 1, 7178 /*command*/ 1, 7179 /*field*/ 1, 7180 /*bit_valid*/ 1, 7181 /*bit*/ 4); 7182 ctl_done((union ctl_io *)ctsio); 7183 return(retval); 7184 } 7185 7186 mtx_lock(&softc->ctl_lock); 7187 single = ctl_is_single; 7188 mtx_unlock(&softc->ctl_lock); 7189 7190 if (single) 7191 num_target_port_groups = NUM_TARGET_PORT_GROUPS - 1; 7192 else 7193 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7194 7195 total_len = sizeof(struct scsi_target_group_data) + 7196 sizeof(struct scsi_target_port_group_descriptor) * 7197 num_target_port_groups + 7198 sizeof(struct scsi_target_port_descriptor) * 7199 NUM_PORTS_PER_GRP * num_target_port_groups; 7200 7201 alloc_len = scsi_4btoul(cdb->length); 7202 7203 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7204 7205 ctsio->kern_sg_entries = 0; 7206 7207 if (total_len < alloc_len) { 7208 ctsio->residual = alloc_len - total_len; 7209 ctsio->kern_data_len = total_len; 7210 ctsio->kern_total_len = total_len; 7211 } else { 7212 ctsio->residual = 0; 7213 ctsio->kern_data_len = alloc_len; 7214 ctsio->kern_total_len = alloc_len; 7215 } 7216 ctsio->kern_data_resid = 0; 7217 ctsio->kern_rel_offset = 0; 7218 7219 rtg_ptr = (struct scsi_target_group_data *)ctsio->kern_data_ptr; 7220 7221 tpg_desc_ptr1 = &rtg_ptr->groups[0]; 7222 tp_desc_ptr1_1 = &tpg_desc_ptr1->descriptors[0]; 7223 tp_desc_ptr1_2 = (struct scsi_target_port_descriptor *) 7224 &tp_desc_ptr1_1->desc_list[0]; 7225 7226 if (single == 0) { 7227 tpg_desc_ptr2 = (struct scsi_target_port_group_descriptor *) 7228 &tp_desc_ptr1_2->desc_list[0]; 7229 tp_desc_ptr2_1 = &tpg_desc_ptr2->descriptors[0]; 7230 tp_desc_ptr2_2 = (struct scsi_target_port_descriptor *) 7231 &tp_desc_ptr2_1->desc_list[0]; 7232 } else { 7233 tpg_desc_ptr2 = NULL; 7234 tp_desc_ptr2_1 = NULL; 7235 tp_desc_ptr2_2 = NULL; 7236 } 7237 7238 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7239 if (single == 0) { 7240 if (ctsio->io_hdr.nexus.targ_port < CTL_MAX_PORTS) { 7241 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7242 tpg_desc_ptr1->pref_state = TPG_PRIMARY; 7243 tpg_desc_ptr2->pref_state = 7244 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7245 } else { 7246 tpg_desc_ptr1->pref_state = 7247 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7248 tpg_desc_ptr2->pref_state = TPG_PRIMARY; 7249 } 7250 } else { 7251 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7252 tpg_desc_ptr1->pref_state = 7253 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7254 tpg_desc_ptr2->pref_state = TPG_PRIMARY; 7255 } else { 7256 tpg_desc_ptr1->pref_state = TPG_PRIMARY; 7257 tpg_desc_ptr2->pref_state = 7258 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7259 } 7260 } 7261 } else { 7262 tpg_desc_ptr1->pref_state = TPG_PRIMARY; 7263 } 7264 tpg_desc_ptr1->support = 0; 7265 tpg_desc_ptr1->target_port_group[1] = 1; 7266 tpg_desc_ptr1->status = TPG_IMPLICIT; 7267 tpg_desc_ptr1->target_port_count= NUM_PORTS_PER_GRP; 7268 7269 if (single == 0) { 7270 tpg_desc_ptr2->support = 0; 7271 tpg_desc_ptr2->target_port_group[1] = 2; 7272 tpg_desc_ptr2->status = TPG_IMPLICIT; 7273 tpg_desc_ptr2->target_port_count = NUM_PORTS_PER_GRP; 7274 7275 tp_desc_ptr1_1->relative_target_port_identifier[1] = 1; 7276 tp_desc_ptr1_2->relative_target_port_identifier[1] = 2; 7277 7278 tp_desc_ptr2_1->relative_target_port_identifier[1] = 9; 7279 tp_desc_ptr2_2->relative_target_port_identifier[1] = 10; 7280 } else { 7281 if (ctsio->io_hdr.nexus.targ_port < CTL_MAX_PORTS) { 7282 tp_desc_ptr1_1->relative_target_port_identifier[1] = 1; 7283 tp_desc_ptr1_2->relative_target_port_identifier[1] = 2; 7284 } else { 7285 tp_desc_ptr1_1->relative_target_port_identifier[1] = 9; 7286 tp_desc_ptr1_2->relative_target_port_identifier[1] = 10; 7287 } 7288 } 7289 7290 ctsio->be_move_done = ctl_config_move_done; 7291 7292 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7293 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7294 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7295 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7296 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7297 7298 ctl_datamove((union ctl_io *)ctsio); 7299 return(retval); 7300} 7301 7302int 7303ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7304{ 7305 struct scsi_per_res_in *cdb; 7306 int alloc_len, total_len = 0; 7307 /* struct scsi_per_res_in_rsrv in_data; */ 7308 struct ctl_lun *lun; 7309 struct ctl_softc *softc; 7310 7311 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7312 7313 softc = control_softc; 7314 7315 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7316 7317 alloc_len = scsi_2btoul(cdb->length); 7318 7319 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7320 7321retry: 7322 mtx_lock(&softc->ctl_lock); 7323 switch (cdb->action) { 7324 case SPRI_RK: /* read keys */ 7325 total_len = sizeof(struct scsi_per_res_in_keys) + 7326 lun->pr_key_count * 7327 sizeof(struct scsi_per_res_key); 7328 break; 7329 case SPRI_RR: /* read reservation */ 7330 if (lun->flags & CTL_LUN_PR_RESERVED) 7331 total_len = sizeof(struct scsi_per_res_in_rsrv); 7332 else 7333 total_len = sizeof(struct scsi_per_res_in_header); 7334 break; 7335 case SPRI_RC: /* report capabilities */ 7336 total_len = sizeof(struct scsi_per_res_cap); 7337 break; 7338 case SPRI_RS: /* read full status */ 7339 default: 7340 mtx_unlock(&softc->ctl_lock); 7341 ctl_set_invalid_field(ctsio, 7342 /*sks_valid*/ 1, 7343 /*command*/ 1, 7344 /*field*/ 1, 7345 /*bit_valid*/ 1, 7346 /*bit*/ 0); 7347 ctl_done((union ctl_io *)ctsio); 7348 return (CTL_RETVAL_COMPLETE); 7349 break; /* NOTREACHED */ 7350 } 7351 mtx_unlock(&softc->ctl_lock); 7352 7353 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7354 7355 if (total_len < alloc_len) { 7356 ctsio->residual = alloc_len - total_len; 7357 ctsio->kern_data_len = total_len; 7358 ctsio->kern_total_len = total_len; 7359 } else { 7360 ctsio->residual = 0; 7361 ctsio->kern_data_len = alloc_len; 7362 ctsio->kern_total_len = alloc_len; 7363 } 7364 7365 ctsio->kern_data_resid = 0; 7366 ctsio->kern_rel_offset = 0; 7367 ctsio->kern_sg_entries = 0; 7368 7369 mtx_lock(&softc->ctl_lock); 7370 switch (cdb->action) { 7371 case SPRI_RK: { // read keys 7372 struct scsi_per_res_in_keys *res_keys; 7373 int i, key_count; 7374 7375 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7376 7377 /* 7378 * We had to drop the lock to allocate our buffer, which 7379 * leaves time for someone to come in with another 7380 * persistent reservation. (That is unlikely, though, 7381 * since this should be the only persistent reservation 7382 * command active right now.) 7383 */ 7384 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7385 (lun->pr_key_count * 7386 sizeof(struct scsi_per_res_key)))){ 7387 mtx_unlock(&softc->ctl_lock); 7388 free(ctsio->kern_data_ptr, M_CTL); 7389 printf("%s: reservation length changed, retrying\n", 7390 __func__); 7391 goto retry; 7392 } 7393 7394 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7395 7396 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7397 lun->pr_key_count, res_keys->header.length); 7398 7399 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7400 if (!lun->per_res[i].registered) 7401 continue; 7402 7403 /* 7404 * We used lun->pr_key_count to calculate the 7405 * size to allocate. If it turns out the number of 7406 * initiators with the registered flag set is 7407 * larger than that (i.e. they haven't been kept in 7408 * sync), we've got a problem. 7409 */ 7410 if (key_count >= lun->pr_key_count) { 7411#ifdef NEEDTOPORT 7412 csevent_log(CSC_CTL | CSC_SHELF_SW | 7413 CTL_PR_ERROR, 7414 csevent_LogType_Fault, 7415 csevent_AlertLevel_Yellow, 7416 csevent_FRU_ShelfController, 7417 csevent_FRU_Firmware, 7418 csevent_FRU_Unknown, 7419 "registered keys %d >= key " 7420 "count %d", key_count, 7421 lun->pr_key_count); 7422#endif 7423 key_count++; 7424 continue; 7425 } 7426 memcpy(res_keys->keys[key_count].key, 7427 lun->per_res[i].res_key.key, 7428 ctl_min(sizeof(res_keys->keys[key_count].key), 7429 sizeof(lun->per_res[i].res_key))); 7430 key_count++; 7431 } 7432 break; 7433 } 7434 case SPRI_RR: { // read reservation 7435 struct scsi_per_res_in_rsrv *res; 7436 int tmp_len, header_only; 7437 7438 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7439 7440 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7441 7442 if (lun->flags & CTL_LUN_PR_RESERVED) 7443 { 7444 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7445 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7446 res->header.length); 7447 header_only = 0; 7448 } else { 7449 tmp_len = sizeof(struct scsi_per_res_in_header); 7450 scsi_ulto4b(0, res->header.length); 7451 header_only = 1; 7452 } 7453 7454 /* 7455 * We had to drop the lock to allocate our buffer, which 7456 * leaves time for someone to come in with another 7457 * persistent reservation. (That is unlikely, though, 7458 * since this should be the only persistent reservation 7459 * command active right now.) 7460 */ 7461 if (tmp_len != total_len) { 7462 mtx_unlock(&softc->ctl_lock); 7463 free(ctsio->kern_data_ptr, M_CTL); 7464 printf("%s: reservation status changed, retrying\n", 7465 __func__); 7466 goto retry; 7467 } 7468 7469 /* 7470 * No reservation held, so we're done. 7471 */ 7472 if (header_only != 0) 7473 break; 7474 7475 /* 7476 * If the registration is an All Registrants type, the key 7477 * is 0, since it doesn't really matter. 7478 */ 7479 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7480 memcpy(res->data.reservation, 7481 &lun->per_res[lun->pr_res_idx].res_key, 7482 sizeof(struct scsi_per_res_key)); 7483 } 7484 res->data.scopetype = lun->res_type; 7485 break; 7486 } 7487 case SPRI_RC: //report capabilities 7488 { 7489 struct scsi_per_res_cap *res_cap; 7490 uint16_t type_mask; 7491 7492 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7493 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7494 res_cap->flags2 |= SPRI_TMV; 7495 type_mask = SPRI_TM_WR_EX_AR | 7496 SPRI_TM_EX_AC_RO | 7497 SPRI_TM_WR_EX_RO | 7498 SPRI_TM_EX_AC | 7499 SPRI_TM_WR_EX | 7500 SPRI_TM_EX_AC_AR; 7501 scsi_ulto2b(type_mask, res_cap->type_mask); 7502 break; 7503 } 7504 case SPRI_RS: //read full status 7505 default: 7506 /* 7507 * This is a bug, because we just checked for this above, 7508 * and should have returned an error. 7509 */ 7510 panic("Invalid PR type %x", cdb->action); 7511 break; /* NOTREACHED */ 7512 } 7513 mtx_unlock(&softc->ctl_lock); 7514 7515 ctsio->be_move_done = ctl_config_move_done; 7516 7517 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7518 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7519 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7520 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7521 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7522 7523 ctl_datamove((union ctl_io *)ctsio); 7524 7525 return (CTL_RETVAL_COMPLETE); 7526} 7527 7528/* 7529 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7530 * it should return. 7531 */ 7532static int 7533ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7534 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7535 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7536 struct scsi_per_res_out_parms* param) 7537{ 7538 union ctl_ha_msg persis_io; 7539 int retval, i; 7540 int isc_retval; 7541 7542 retval = 0; 7543 7544 if (sa_res_key == 0) { 7545 mtx_lock(&softc->ctl_lock); 7546 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7547 /* validate scope and type */ 7548 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7549 SPR_LU_SCOPE) { 7550 mtx_unlock(&softc->ctl_lock); 7551 ctl_set_invalid_field(/*ctsio*/ ctsio, 7552 /*sks_valid*/ 1, 7553 /*command*/ 1, 7554 /*field*/ 2, 7555 /*bit_valid*/ 1, 7556 /*bit*/ 4); 7557 ctl_done((union ctl_io *)ctsio); 7558 return (1); 7559 } 7560 7561 if (type>8 || type==2 || type==4 || type==0) { 7562 mtx_unlock(&softc->ctl_lock); 7563 ctl_set_invalid_field(/*ctsio*/ ctsio, 7564 /*sks_valid*/ 1, 7565 /*command*/ 1, 7566 /*field*/ 2, 7567 /*bit_valid*/ 1, 7568 /*bit*/ 0); 7569 ctl_done((union ctl_io *)ctsio); 7570 return (1); 7571 } 7572 7573 /* temporarily unregister this nexus */ 7574 lun->per_res[residx].registered = 0; 7575 7576 /* 7577 * Unregister everybody else and build UA for 7578 * them 7579 */ 7580 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7581 if (lun->per_res[i].registered == 0) 7582 continue; 7583 7584 if (!persis_offset 7585 && i <CTL_MAX_INITIATORS) 7586 lun->pending_sense[i].ua_pending |= 7587 CTL_UA_REG_PREEMPT; 7588 else if (persis_offset 7589 && i >= persis_offset) 7590 lun->pending_sense[i-persis_offset 7591 ].ua_pending |= 7592 CTL_UA_REG_PREEMPT; 7593 lun->per_res[i].registered = 0; 7594 memset(&lun->per_res[i].res_key, 0, 7595 sizeof(struct scsi_per_res_key)); 7596 } 7597 lun->per_res[residx].registered = 1; 7598 lun->pr_key_count = 1; 7599 lun->res_type = type; 7600 if (lun->res_type != SPR_TYPE_WR_EX_AR 7601 && lun->res_type != SPR_TYPE_EX_AC_AR) 7602 lun->pr_res_idx = residx; 7603 7604 mtx_unlock(&softc->ctl_lock); 7605 /* send msg to other side */ 7606 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7607 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7608 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7609 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7610 persis_io.pr.pr_info.res_type = type; 7611 memcpy(persis_io.pr.pr_info.sa_res_key, 7612 param->serv_act_res_key, 7613 sizeof(param->serv_act_res_key)); 7614 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7615 &persis_io, sizeof(persis_io), 0)) > 7616 CTL_HA_STATUS_SUCCESS) { 7617 printf("CTL:Persis Out error returned " 7618 "from ctl_ha_msg_send %d\n", 7619 isc_retval); 7620 } 7621 } else { 7622 /* not all registrants */ 7623 mtx_unlock(&softc->ctl_lock); 7624 free(ctsio->kern_data_ptr, M_CTL); 7625 ctl_set_invalid_field(ctsio, 7626 /*sks_valid*/ 1, 7627 /*command*/ 0, 7628 /*field*/ 8, 7629 /*bit_valid*/ 0, 7630 /*bit*/ 0); 7631 ctl_done((union ctl_io *)ctsio); 7632 return (1); 7633 } 7634 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7635 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7636 int found = 0; 7637 7638 mtx_lock(&softc->ctl_lock); 7639 if (res_key == sa_res_key) { 7640 /* special case */ 7641 /* 7642 * The spec implies this is not good but doesn't 7643 * say what to do. There are two choices either 7644 * generate a res conflict or check condition 7645 * with illegal field in parameter data. Since 7646 * that is what is done when the sa_res_key is 7647 * zero I'll take that approach since this has 7648 * to do with the sa_res_key. 7649 */ 7650 mtx_unlock(&softc->ctl_lock); 7651 free(ctsio->kern_data_ptr, M_CTL); 7652 ctl_set_invalid_field(ctsio, 7653 /*sks_valid*/ 1, 7654 /*command*/ 0, 7655 /*field*/ 8, 7656 /*bit_valid*/ 0, 7657 /*bit*/ 0); 7658 ctl_done((union ctl_io *)ctsio); 7659 return (1); 7660 } 7661 7662 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7663 if (lun->per_res[i].registered 7664 && memcmp(param->serv_act_res_key, 7665 lun->per_res[i].res_key.key, 7666 sizeof(struct scsi_per_res_key)) != 0) 7667 continue; 7668 7669 found = 1; 7670 lun->per_res[i].registered = 0; 7671 memset(&lun->per_res[i].res_key, 0, 7672 sizeof(struct scsi_per_res_key)); 7673 lun->pr_key_count--; 7674 7675 if (!persis_offset 7676 && i < CTL_MAX_INITIATORS) 7677 lun->pending_sense[i].ua_pending |= 7678 CTL_UA_REG_PREEMPT; 7679 else if (persis_offset 7680 && i >= persis_offset) 7681 lun->pending_sense[i-persis_offset].ua_pending|= 7682 CTL_UA_REG_PREEMPT; 7683 } 7684 mtx_unlock(&softc->ctl_lock); 7685 if (!found) { 7686 free(ctsio->kern_data_ptr, M_CTL); 7687 ctl_set_reservation_conflict(ctsio); 7688 ctl_done((union ctl_io *)ctsio); 7689 return (CTL_RETVAL_COMPLETE); 7690 } 7691 /* send msg to other side */ 7692 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7693 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7694 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7695 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7696 persis_io.pr.pr_info.res_type = type; 7697 memcpy(persis_io.pr.pr_info.sa_res_key, 7698 param->serv_act_res_key, 7699 sizeof(param->serv_act_res_key)); 7700 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7701 &persis_io, sizeof(persis_io), 0)) > 7702 CTL_HA_STATUS_SUCCESS) { 7703 printf("CTL:Persis Out error returned from " 7704 "ctl_ha_msg_send %d\n", isc_retval); 7705 } 7706 } else { 7707 /* Reserved but not all registrants */ 7708 /* sa_res_key is res holder */ 7709 if (memcmp(param->serv_act_res_key, 7710 lun->per_res[lun->pr_res_idx].res_key.key, 7711 sizeof(struct scsi_per_res_key)) == 0) { 7712 /* validate scope and type */ 7713 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7714 SPR_LU_SCOPE) { 7715 ctl_set_invalid_field(/*ctsio*/ ctsio, 7716 /*sks_valid*/ 1, 7717 /*command*/ 1, 7718 /*field*/ 2, 7719 /*bit_valid*/ 1, 7720 /*bit*/ 4); 7721 ctl_done((union ctl_io *)ctsio); 7722 return (1); 7723 } 7724 7725 if (type>8 || type==2 || type==4 || type==0) { 7726 ctl_set_invalid_field(/*ctsio*/ ctsio, 7727 /*sks_valid*/ 1, 7728 /*command*/ 1, 7729 /*field*/ 2, 7730 /*bit_valid*/ 1, 7731 /*bit*/ 0); 7732 ctl_done((union ctl_io *)ctsio); 7733 return (1); 7734 } 7735 7736 /* 7737 * Do the following: 7738 * if sa_res_key != res_key remove all 7739 * registrants w/sa_res_key and generate UA 7740 * for these registrants(Registrations 7741 * Preempted) if it wasn't an exclusive 7742 * reservation generate UA(Reservations 7743 * Preempted) for all other registered nexuses 7744 * if the type has changed. Establish the new 7745 * reservation and holder. If res_key and 7746 * sa_res_key are the same do the above 7747 * except don't unregister the res holder. 7748 */ 7749 7750 /* 7751 * Temporarily unregister so it won't get 7752 * removed or UA generated 7753 */ 7754 lun->per_res[residx].registered = 0; 7755 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7756 if (lun->per_res[i].registered == 0) 7757 continue; 7758 7759 if (memcmp(param->serv_act_res_key, 7760 lun->per_res[i].res_key.key, 7761 sizeof(struct scsi_per_res_key)) == 0) { 7762 lun->per_res[i].registered = 0; 7763 memset(&lun->per_res[i].res_key, 7764 0, 7765 sizeof(struct scsi_per_res_key)); 7766 lun->pr_key_count--; 7767 7768 if (!persis_offset 7769 && i < CTL_MAX_INITIATORS) 7770 lun->pending_sense[i 7771 ].ua_pending |= 7772 CTL_UA_REG_PREEMPT; 7773 else if (persis_offset 7774 && i >= persis_offset) 7775 lun->pending_sense[ 7776 i-persis_offset].ua_pending |= 7777 CTL_UA_REG_PREEMPT; 7778 } else if (type != lun->res_type 7779 && (lun->res_type == SPR_TYPE_WR_EX_RO 7780 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 7781 if (!persis_offset 7782 && i < CTL_MAX_INITIATORS) 7783 lun->pending_sense[i 7784 ].ua_pending |= 7785 CTL_UA_RES_RELEASE; 7786 else if (persis_offset 7787 && i >= persis_offset) 7788 lun->pending_sense[ 7789 i-persis_offset 7790 ].ua_pending |= 7791 CTL_UA_RES_RELEASE; 7792 } 7793 } 7794 lun->per_res[residx].registered = 1; 7795 lun->res_type = type; 7796 if (lun->res_type != SPR_TYPE_WR_EX_AR 7797 && lun->res_type != SPR_TYPE_EX_AC_AR) 7798 lun->pr_res_idx = residx; 7799 else 7800 lun->pr_res_idx = 7801 CTL_PR_ALL_REGISTRANTS; 7802 7803 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7804 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7805 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7806 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7807 persis_io.pr.pr_info.res_type = type; 7808 memcpy(persis_io.pr.pr_info.sa_res_key, 7809 param->serv_act_res_key, 7810 sizeof(param->serv_act_res_key)); 7811 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7812 &persis_io, sizeof(persis_io), 0)) > 7813 CTL_HA_STATUS_SUCCESS) { 7814 printf("CTL:Persis Out error returned " 7815 "from ctl_ha_msg_send %d\n", 7816 isc_retval); 7817 } 7818 } else { 7819 /* 7820 * sa_res_key is not the res holder just 7821 * remove registrants 7822 */ 7823 int found=0; 7824 mtx_lock(&softc->ctl_lock); 7825 7826 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7827 if (memcmp(param->serv_act_res_key, 7828 lun->per_res[i].res_key.key, 7829 sizeof(struct scsi_per_res_key)) != 0) 7830 continue; 7831 7832 found = 1; 7833 lun->per_res[i].registered = 0; 7834 memset(&lun->per_res[i].res_key, 0, 7835 sizeof(struct scsi_per_res_key)); 7836 lun->pr_key_count--; 7837 7838 if (!persis_offset 7839 && i < CTL_MAX_INITIATORS) 7840 lun->pending_sense[i].ua_pending |= 7841 CTL_UA_REG_PREEMPT; 7842 else if (persis_offset 7843 && i >= persis_offset) 7844 lun->pending_sense[ 7845 i-persis_offset].ua_pending |= 7846 CTL_UA_REG_PREEMPT; 7847 } 7848 7849 if (!found) { 7850 mtx_unlock(&softc->ctl_lock); 7851 free(ctsio->kern_data_ptr, M_CTL); 7852 ctl_set_reservation_conflict(ctsio); 7853 ctl_done((union ctl_io *)ctsio); 7854 return (1); 7855 } 7856 mtx_unlock(&softc->ctl_lock); 7857 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7858 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7859 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7860 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7861 persis_io.pr.pr_info.res_type = type; 7862 memcpy(persis_io.pr.pr_info.sa_res_key, 7863 param->serv_act_res_key, 7864 sizeof(param->serv_act_res_key)); 7865 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7866 &persis_io, sizeof(persis_io), 0)) > 7867 CTL_HA_STATUS_SUCCESS) { 7868 printf("CTL:Persis Out error returned " 7869 "from ctl_ha_msg_send %d\n", 7870 isc_retval); 7871 } 7872 } 7873 } 7874 7875 lun->PRGeneration++; 7876 7877 return (retval); 7878} 7879 7880static void 7881ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 7882{ 7883 int i; 7884 7885 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7886 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 7887 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 7888 msg->pr.pr_info.sa_res_key, 7889 sizeof(struct scsi_per_res_key)) != 0) { 7890 uint64_t sa_res_key; 7891 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 7892 7893 if (sa_res_key == 0) { 7894 /* temporarily unregister this nexus */ 7895 lun->per_res[msg->pr.pr_info.residx].registered = 0; 7896 7897 /* 7898 * Unregister everybody else and build UA for 7899 * them 7900 */ 7901 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7902 if (lun->per_res[i].registered == 0) 7903 continue; 7904 7905 if (!persis_offset 7906 && i < CTL_MAX_INITIATORS) 7907 lun->pending_sense[i].ua_pending |= 7908 CTL_UA_REG_PREEMPT; 7909 else if (persis_offset && i >= persis_offset) 7910 lun->pending_sense[i - 7911 persis_offset].ua_pending |= 7912 CTL_UA_REG_PREEMPT; 7913 lun->per_res[i].registered = 0; 7914 memset(&lun->per_res[i].res_key, 0, 7915 sizeof(struct scsi_per_res_key)); 7916 } 7917 7918 lun->per_res[msg->pr.pr_info.residx].registered = 1; 7919 lun->pr_key_count = 1; 7920 lun->res_type = msg->pr.pr_info.res_type; 7921 if (lun->res_type != SPR_TYPE_WR_EX_AR 7922 && lun->res_type != SPR_TYPE_EX_AC_AR) 7923 lun->pr_res_idx = msg->pr.pr_info.residx; 7924 } else { 7925 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7926 if (memcmp(msg->pr.pr_info.sa_res_key, 7927 lun->per_res[i].res_key.key, 7928 sizeof(struct scsi_per_res_key)) != 0) 7929 continue; 7930 7931 lun->per_res[i].registered = 0; 7932 memset(&lun->per_res[i].res_key, 0, 7933 sizeof(struct scsi_per_res_key)); 7934 lun->pr_key_count--; 7935 7936 if (!persis_offset 7937 && i < persis_offset) 7938 lun->pending_sense[i].ua_pending |= 7939 CTL_UA_REG_PREEMPT; 7940 else if (persis_offset 7941 && i >= persis_offset) 7942 lun->pending_sense[i - 7943 persis_offset].ua_pending |= 7944 CTL_UA_REG_PREEMPT; 7945 } 7946 } 7947 } else { 7948 /* 7949 * Temporarily unregister so it won't get removed 7950 * or UA generated 7951 */ 7952 lun->per_res[msg->pr.pr_info.residx].registered = 0; 7953 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7954 if (lun->per_res[i].registered == 0) 7955 continue; 7956 7957 if (memcmp(msg->pr.pr_info.sa_res_key, 7958 lun->per_res[i].res_key.key, 7959 sizeof(struct scsi_per_res_key)) == 0) { 7960 lun->per_res[i].registered = 0; 7961 memset(&lun->per_res[i].res_key, 0, 7962 sizeof(struct scsi_per_res_key)); 7963 lun->pr_key_count--; 7964 if (!persis_offset 7965 && i < CTL_MAX_INITIATORS) 7966 lun->pending_sense[i].ua_pending |= 7967 CTL_UA_REG_PREEMPT; 7968 else if (persis_offset 7969 && i >= persis_offset) 7970 lun->pending_sense[i - 7971 persis_offset].ua_pending |= 7972 CTL_UA_REG_PREEMPT; 7973 } else if (msg->pr.pr_info.res_type != lun->res_type 7974 && (lun->res_type == SPR_TYPE_WR_EX_RO 7975 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 7976 if (!persis_offset 7977 && i < persis_offset) 7978 lun->pending_sense[i 7979 ].ua_pending |= 7980 CTL_UA_RES_RELEASE; 7981 else if (persis_offset 7982 && i >= persis_offset) 7983 lun->pending_sense[i - 7984 persis_offset].ua_pending |= 7985 CTL_UA_RES_RELEASE; 7986 } 7987 } 7988 lun->per_res[msg->pr.pr_info.residx].registered = 1; 7989 lun->res_type = msg->pr.pr_info.res_type; 7990 if (lun->res_type != SPR_TYPE_WR_EX_AR 7991 && lun->res_type != SPR_TYPE_EX_AC_AR) 7992 lun->pr_res_idx = msg->pr.pr_info.residx; 7993 else 7994 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7995 } 7996 lun->PRGeneration++; 7997 7998} 7999 8000 8001int 8002ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8003{ 8004 int retval; 8005 int isc_retval; 8006 u_int32_t param_len; 8007 struct scsi_per_res_out *cdb; 8008 struct ctl_lun *lun; 8009 struct scsi_per_res_out_parms* param; 8010 struct ctl_softc *softc; 8011 uint32_t residx; 8012 uint64_t res_key, sa_res_key; 8013 uint8_t type; 8014 union ctl_ha_msg persis_io; 8015 int i; 8016 8017 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8018 8019 retval = CTL_RETVAL_COMPLETE; 8020 8021 softc = control_softc; 8022 8023 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8024 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8025 8026 /* 8027 * We only support whole-LUN scope. The scope & type are ignored for 8028 * register, register and ignore existing key and clear. 8029 * We sometimes ignore scope and type on preempts too!! 8030 * Verify reservation type here as well. 8031 */ 8032 type = cdb->scope_type & SPR_TYPE_MASK; 8033 if ((cdb->action == SPRO_RESERVE) 8034 || (cdb->action == SPRO_RELEASE)) { 8035 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8036 ctl_set_invalid_field(/*ctsio*/ ctsio, 8037 /*sks_valid*/ 1, 8038 /*command*/ 1, 8039 /*field*/ 2, 8040 /*bit_valid*/ 1, 8041 /*bit*/ 4); 8042 ctl_done((union ctl_io *)ctsio); 8043 return (CTL_RETVAL_COMPLETE); 8044 } 8045 8046 if (type>8 || type==2 || type==4 || type==0) { 8047 ctl_set_invalid_field(/*ctsio*/ ctsio, 8048 /*sks_valid*/ 1, 8049 /*command*/ 1, 8050 /*field*/ 2, 8051 /*bit_valid*/ 1, 8052 /*bit*/ 0); 8053 ctl_done((union ctl_io *)ctsio); 8054 return (CTL_RETVAL_COMPLETE); 8055 } 8056 } 8057 8058 switch (cdb->action & SPRO_ACTION_MASK) { 8059 case SPRO_REGISTER: 8060 case SPRO_RESERVE: 8061 case SPRO_RELEASE: 8062 case SPRO_CLEAR: 8063 case SPRO_PREEMPT: 8064 case SPRO_REG_IGNO: 8065 break; 8066 case SPRO_REG_MOVE: 8067 case SPRO_PRE_ABO: 8068 default: 8069 ctl_set_invalid_field(/*ctsio*/ ctsio, 8070 /*sks_valid*/ 1, 8071 /*command*/ 1, 8072 /*field*/ 1, 8073 /*bit_valid*/ 1, 8074 /*bit*/ 0); 8075 ctl_done((union ctl_io *)ctsio); 8076 return (CTL_RETVAL_COMPLETE); 8077 break; /* NOTREACHED */ 8078 } 8079 8080 param_len = scsi_4btoul(cdb->length); 8081 8082 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8083 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8084 ctsio->kern_data_len = param_len; 8085 ctsio->kern_total_len = param_len; 8086 ctsio->kern_data_resid = 0; 8087 ctsio->kern_rel_offset = 0; 8088 ctsio->kern_sg_entries = 0; 8089 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8090 ctsio->be_move_done = ctl_config_move_done; 8091 ctl_datamove((union ctl_io *)ctsio); 8092 8093 return (CTL_RETVAL_COMPLETE); 8094 } 8095 8096 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8097 8098 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8099 res_key = scsi_8btou64(param->res_key.key); 8100 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8101 8102 /* 8103 * Validate the reservation key here except for SPRO_REG_IGNO 8104 * This must be done for all other service actions 8105 */ 8106 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8107 mtx_lock(&softc->ctl_lock); 8108 if (lun->per_res[residx].registered) { 8109 if (memcmp(param->res_key.key, 8110 lun->per_res[residx].res_key.key, 8111 ctl_min(sizeof(param->res_key), 8112 sizeof(lun->per_res[residx].res_key))) != 0) { 8113 /* 8114 * The current key passed in doesn't match 8115 * the one the initiator previously 8116 * registered. 8117 */ 8118 mtx_unlock(&softc->ctl_lock); 8119 free(ctsio->kern_data_ptr, M_CTL); 8120 ctl_set_reservation_conflict(ctsio); 8121 ctl_done((union ctl_io *)ctsio); 8122 return (CTL_RETVAL_COMPLETE); 8123 } 8124 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8125 /* 8126 * We are not registered 8127 */ 8128 mtx_unlock(&softc->ctl_lock); 8129 free(ctsio->kern_data_ptr, M_CTL); 8130 ctl_set_reservation_conflict(ctsio); 8131 ctl_done((union ctl_io *)ctsio); 8132 return (CTL_RETVAL_COMPLETE); 8133 } else if (res_key != 0) { 8134 /* 8135 * We are not registered and trying to register but 8136 * the register key isn't zero. 8137 */ 8138 mtx_unlock(&softc->ctl_lock); 8139 free(ctsio->kern_data_ptr, M_CTL); 8140 ctl_set_reservation_conflict(ctsio); 8141 ctl_done((union ctl_io *)ctsio); 8142 return (CTL_RETVAL_COMPLETE); 8143 } 8144 mtx_unlock(&softc->ctl_lock); 8145 } 8146 8147 switch (cdb->action & SPRO_ACTION_MASK) { 8148 case SPRO_REGISTER: 8149 case SPRO_REG_IGNO: { 8150 8151#if 0 8152 printf("Registration received\n"); 8153#endif 8154 8155 /* 8156 * We don't support any of these options, as we report in 8157 * the read capabilities request (see 8158 * ctl_persistent_reserve_in(), above). 8159 */ 8160 if ((param->flags & SPR_SPEC_I_PT) 8161 || (param->flags & SPR_ALL_TG_PT) 8162 || (param->flags & SPR_APTPL)) { 8163 int bit_ptr; 8164 8165 if (param->flags & SPR_APTPL) 8166 bit_ptr = 0; 8167 else if (param->flags & SPR_ALL_TG_PT) 8168 bit_ptr = 2; 8169 else /* SPR_SPEC_I_PT */ 8170 bit_ptr = 3; 8171 8172 free(ctsio->kern_data_ptr, M_CTL); 8173 ctl_set_invalid_field(ctsio, 8174 /*sks_valid*/ 1, 8175 /*command*/ 0, 8176 /*field*/ 20, 8177 /*bit_valid*/ 1, 8178 /*bit*/ bit_ptr); 8179 ctl_done((union ctl_io *)ctsio); 8180 return (CTL_RETVAL_COMPLETE); 8181 } 8182 8183 mtx_lock(&softc->ctl_lock); 8184 8185 /* 8186 * The initiator wants to clear the 8187 * key/unregister. 8188 */ 8189 if (sa_res_key == 0) { 8190 if ((res_key == 0 8191 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8192 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8193 && !lun->per_res[residx].registered)) { 8194 mtx_unlock(&softc->ctl_lock); 8195 goto done; 8196 } 8197 8198 lun->per_res[residx].registered = 0; 8199 memset(&lun->per_res[residx].res_key, 8200 0, sizeof(lun->per_res[residx].res_key)); 8201 lun->pr_key_count--; 8202 8203 if (residx == lun->pr_res_idx) { 8204 lun->flags &= ~CTL_LUN_PR_RESERVED; 8205 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8206 8207 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8208 || lun->res_type == SPR_TYPE_EX_AC_RO) 8209 && lun->pr_key_count) { 8210 /* 8211 * If the reservation is a registrants 8212 * only type we need to generate a UA 8213 * for other registered inits. The 8214 * sense code should be RESERVATIONS 8215 * RELEASED 8216 */ 8217 8218 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8219 if (lun->per_res[ 8220 i+persis_offset].registered 8221 == 0) 8222 continue; 8223 lun->pending_sense[i 8224 ].ua_pending |= 8225 CTL_UA_RES_RELEASE; 8226 } 8227 } 8228 lun->res_type = 0; 8229 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8230 if (lun->pr_key_count==0) { 8231 lun->flags &= ~CTL_LUN_PR_RESERVED; 8232 lun->res_type = 0; 8233 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8234 } 8235 } 8236 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8237 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8238 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8239 persis_io.pr.pr_info.residx = residx; 8240 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8241 &persis_io, sizeof(persis_io), 0 )) > 8242 CTL_HA_STATUS_SUCCESS) { 8243 printf("CTL:Persis Out error returned from " 8244 "ctl_ha_msg_send %d\n", isc_retval); 8245 } 8246 mtx_unlock(&softc->ctl_lock); 8247 } else /* sa_res_key != 0 */ { 8248 8249 /* 8250 * If we aren't registered currently then increment 8251 * the key count and set the registered flag. 8252 */ 8253 if (!lun->per_res[residx].registered) { 8254 lun->pr_key_count++; 8255 lun->per_res[residx].registered = 1; 8256 } 8257 8258 memcpy(&lun->per_res[residx].res_key, 8259 param->serv_act_res_key, 8260 ctl_min(sizeof(param->serv_act_res_key), 8261 sizeof(lun->per_res[residx].res_key))); 8262 8263 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8264 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8265 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8266 persis_io.pr.pr_info.residx = residx; 8267 memcpy(persis_io.pr.pr_info.sa_res_key, 8268 param->serv_act_res_key, 8269 sizeof(param->serv_act_res_key)); 8270 mtx_unlock(&softc->ctl_lock); 8271 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8272 &persis_io, sizeof(persis_io), 0)) > 8273 CTL_HA_STATUS_SUCCESS) { 8274 printf("CTL:Persis Out error returned from " 8275 "ctl_ha_msg_send %d\n", isc_retval); 8276 } 8277 } 8278 lun->PRGeneration++; 8279 8280 break; 8281 } 8282 case SPRO_RESERVE: 8283#if 0 8284 printf("Reserve executed type %d\n", type); 8285#endif 8286 mtx_lock(&softc->ctl_lock); 8287 if (lun->flags & CTL_LUN_PR_RESERVED) { 8288 /* 8289 * if this isn't the reservation holder and it's 8290 * not a "all registrants" type or if the type is 8291 * different then we have a conflict 8292 */ 8293 if ((lun->pr_res_idx != residx 8294 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8295 || lun->res_type != type) { 8296 mtx_unlock(&softc->ctl_lock); 8297 free(ctsio->kern_data_ptr, M_CTL); 8298 ctl_set_reservation_conflict(ctsio); 8299 ctl_done((union ctl_io *)ctsio); 8300 return (CTL_RETVAL_COMPLETE); 8301 } 8302 mtx_unlock(&softc->ctl_lock); 8303 } else /* create a reservation */ { 8304 /* 8305 * If it's not an "all registrants" type record 8306 * reservation holder 8307 */ 8308 if (type != SPR_TYPE_WR_EX_AR 8309 && type != SPR_TYPE_EX_AC_AR) 8310 lun->pr_res_idx = residx; /* Res holder */ 8311 else 8312 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8313 8314 lun->flags |= CTL_LUN_PR_RESERVED; 8315 lun->res_type = type; 8316 8317 mtx_unlock(&softc->ctl_lock); 8318 8319 /* send msg to other side */ 8320 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8321 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8322 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8323 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8324 persis_io.pr.pr_info.res_type = type; 8325 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8326 &persis_io, sizeof(persis_io), 0)) > 8327 CTL_HA_STATUS_SUCCESS) { 8328 printf("CTL:Persis Out error returned from " 8329 "ctl_ha_msg_send %d\n", isc_retval); 8330 } 8331 } 8332 break; 8333 8334 case SPRO_RELEASE: 8335 mtx_lock(&softc->ctl_lock); 8336 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8337 /* No reservation exists return good status */ 8338 mtx_unlock(&softc->ctl_lock); 8339 goto done; 8340 } 8341 /* 8342 * Is this nexus a reservation holder? 8343 */ 8344 if (lun->pr_res_idx != residx 8345 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8346 /* 8347 * not a res holder return good status but 8348 * do nothing 8349 */ 8350 mtx_unlock(&softc->ctl_lock); 8351 goto done; 8352 } 8353 8354 if (lun->res_type != type) { 8355 mtx_unlock(&softc->ctl_lock); 8356 free(ctsio->kern_data_ptr, M_CTL); 8357 ctl_set_illegal_pr_release(ctsio); 8358 ctl_done((union ctl_io *)ctsio); 8359 return (CTL_RETVAL_COMPLETE); 8360 } 8361 8362 /* okay to release */ 8363 lun->flags &= ~CTL_LUN_PR_RESERVED; 8364 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8365 lun->res_type = 0; 8366 8367 /* 8368 * if this isn't an exclusive access 8369 * res generate UA for all other 8370 * registrants. 8371 */ 8372 if (type != SPR_TYPE_EX_AC 8373 && type != SPR_TYPE_WR_EX) { 8374 /* 8375 * temporarily unregister so we don't generate UA 8376 */ 8377 lun->per_res[residx].registered = 0; 8378 8379 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8380 if (lun->per_res[i+persis_offset].registered 8381 == 0) 8382 continue; 8383 lun->pending_sense[i].ua_pending |= 8384 CTL_UA_RES_RELEASE; 8385 } 8386 8387 lun->per_res[residx].registered = 1; 8388 } 8389 mtx_unlock(&softc->ctl_lock); 8390 /* Send msg to other side */ 8391 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8392 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8393 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8394 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8395 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8396 printf("CTL:Persis Out error returned from " 8397 "ctl_ha_msg_send %d\n", isc_retval); 8398 } 8399 break; 8400 8401 case SPRO_CLEAR: 8402 /* send msg to other side */ 8403 8404 mtx_lock(&softc->ctl_lock); 8405 lun->flags &= ~CTL_LUN_PR_RESERVED; 8406 lun->res_type = 0; 8407 lun->pr_key_count = 0; 8408 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8409 8410 8411 memset(&lun->per_res[residx].res_key, 8412 0, sizeof(lun->per_res[residx].res_key)); 8413 lun->per_res[residx].registered = 0; 8414 8415 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8416 if (lun->per_res[i].registered) { 8417 if (!persis_offset && i < CTL_MAX_INITIATORS) 8418 lun->pending_sense[i].ua_pending |= 8419 CTL_UA_RES_PREEMPT; 8420 else if (persis_offset && i >= persis_offset) 8421 lun->pending_sense[i-persis_offset 8422 ].ua_pending |= CTL_UA_RES_PREEMPT; 8423 8424 memset(&lun->per_res[i].res_key, 8425 0, sizeof(struct scsi_per_res_key)); 8426 lun->per_res[i].registered = 0; 8427 } 8428 lun->PRGeneration++; 8429 mtx_unlock(&softc->ctl_lock); 8430 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8431 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8432 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8433 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8434 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8435 printf("CTL:Persis Out error returned from " 8436 "ctl_ha_msg_send %d\n", isc_retval); 8437 } 8438 break; 8439 8440 case SPRO_PREEMPT: { 8441 int nretval; 8442 8443 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8444 residx, ctsio, cdb, param); 8445 if (nretval != 0) 8446 return (CTL_RETVAL_COMPLETE); 8447 break; 8448 } 8449 case SPRO_REG_MOVE: 8450 case SPRO_PRE_ABO: 8451 default: 8452 free(ctsio->kern_data_ptr, M_CTL); 8453 ctl_set_invalid_field(/*ctsio*/ ctsio, 8454 /*sks_valid*/ 1, 8455 /*command*/ 1, 8456 /*field*/ 1, 8457 /*bit_valid*/ 1, 8458 /*bit*/ 0); 8459 ctl_done((union ctl_io *)ctsio); 8460 return (CTL_RETVAL_COMPLETE); 8461 break; /* NOTREACHED */ 8462 } 8463 8464done: 8465 free(ctsio->kern_data_ptr, M_CTL); 8466 ctl_set_success(ctsio); 8467 ctl_done((union ctl_io *)ctsio); 8468 8469 return (retval); 8470} 8471 8472/* 8473 * This routine is for handling a message from the other SC pertaining to 8474 * persistent reserve out. All the error checking will have been done 8475 * so only perorming the action need be done here to keep the two 8476 * in sync. 8477 */ 8478static void 8479ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8480{ 8481 struct ctl_lun *lun; 8482 struct ctl_softc *softc; 8483 int i; 8484 uint32_t targ_lun; 8485 8486 softc = control_softc; 8487 8488 mtx_lock(&softc->ctl_lock); 8489 8490 targ_lun = msg->hdr.nexus.targ_lun; 8491 if (msg->hdr.nexus.lun_map_fn != NULL) 8492 targ_lun = msg->hdr.nexus.lun_map_fn(msg->hdr.nexus.lun_map_arg, targ_lun); 8493 lun = softc->ctl_luns[targ_lun]; 8494 switch(msg->pr.pr_info.action) { 8495 case CTL_PR_REG_KEY: 8496 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8497 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8498 lun->pr_key_count++; 8499 } 8500 lun->PRGeneration++; 8501 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8502 msg->pr.pr_info.sa_res_key, 8503 sizeof(struct scsi_per_res_key)); 8504 break; 8505 8506 case CTL_PR_UNREG_KEY: 8507 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8508 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8509 0, sizeof(struct scsi_per_res_key)); 8510 lun->pr_key_count--; 8511 8512 /* XXX Need to see if the reservation has been released */ 8513 /* if so do we need to generate UA? */ 8514 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8515 lun->flags &= ~CTL_LUN_PR_RESERVED; 8516 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8517 8518 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8519 || lun->res_type == SPR_TYPE_EX_AC_RO) 8520 && lun->pr_key_count) { 8521 /* 8522 * If the reservation is a registrants 8523 * only type we need to generate a UA 8524 * for other registered inits. The 8525 * sense code should be RESERVATIONS 8526 * RELEASED 8527 */ 8528 8529 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8530 if (lun->per_res[i+ 8531 persis_offset].registered == 0) 8532 continue; 8533 8534 lun->pending_sense[i 8535 ].ua_pending |= 8536 CTL_UA_RES_RELEASE; 8537 } 8538 } 8539 lun->res_type = 0; 8540 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8541 if (lun->pr_key_count==0) { 8542 lun->flags &= ~CTL_LUN_PR_RESERVED; 8543 lun->res_type = 0; 8544 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8545 } 8546 } 8547 lun->PRGeneration++; 8548 break; 8549 8550 case CTL_PR_RESERVE: 8551 lun->flags |= CTL_LUN_PR_RESERVED; 8552 lun->res_type = msg->pr.pr_info.res_type; 8553 lun->pr_res_idx = msg->pr.pr_info.residx; 8554 8555 break; 8556 8557 case CTL_PR_RELEASE: 8558 /* 8559 * if this isn't an exclusive access res generate UA for all 8560 * other registrants. 8561 */ 8562 if (lun->res_type != SPR_TYPE_EX_AC 8563 && lun->res_type != SPR_TYPE_WR_EX) { 8564 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8565 if (lun->per_res[i+persis_offset].registered) 8566 lun->pending_sense[i].ua_pending |= 8567 CTL_UA_RES_RELEASE; 8568 } 8569 8570 lun->flags &= ~CTL_LUN_PR_RESERVED; 8571 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8572 lun->res_type = 0; 8573 break; 8574 8575 case CTL_PR_PREEMPT: 8576 ctl_pro_preempt_other(lun, msg); 8577 break; 8578 case CTL_PR_CLEAR: 8579 lun->flags &= ~CTL_LUN_PR_RESERVED; 8580 lun->res_type = 0; 8581 lun->pr_key_count = 0; 8582 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8583 8584 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8585 if (lun->per_res[i].registered == 0) 8586 continue; 8587 if (!persis_offset 8588 && i < CTL_MAX_INITIATORS) 8589 lun->pending_sense[i].ua_pending |= 8590 CTL_UA_RES_PREEMPT; 8591 else if (persis_offset 8592 && i >= persis_offset) 8593 lun->pending_sense[i-persis_offset].ua_pending|= 8594 CTL_UA_RES_PREEMPT; 8595 memset(&lun->per_res[i].res_key, 0, 8596 sizeof(struct scsi_per_res_key)); 8597 lun->per_res[i].registered = 0; 8598 } 8599 lun->PRGeneration++; 8600 break; 8601 } 8602 8603 mtx_unlock(&softc->ctl_lock); 8604} 8605 8606int 8607ctl_read_write(struct ctl_scsiio *ctsio) 8608{ 8609 struct ctl_lun *lun; 8610 struct ctl_lba_len_flags *lbalen; 8611 uint64_t lba; 8612 uint32_t num_blocks; 8613 int reladdr, fua, dpo, ebp; 8614 int retval; 8615 int isread; 8616 8617 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8618 8619 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8620 8621 reladdr = 0; 8622 fua = 0; 8623 dpo = 0; 8624 ebp = 0; 8625 8626 retval = CTL_RETVAL_COMPLETE; 8627 8628 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8629 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8630 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 8631 uint32_t residx; 8632 8633 /* 8634 * XXX KDM need a lock here. 8635 */ 8636 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8637 if ((lun->res_type == SPR_TYPE_EX_AC 8638 && residx != lun->pr_res_idx) 8639 || ((lun->res_type == SPR_TYPE_EX_AC_RO 8640 || lun->res_type == SPR_TYPE_EX_AC_AR) 8641 && !lun->per_res[residx].registered)) { 8642 ctl_set_reservation_conflict(ctsio); 8643 ctl_done((union ctl_io *)ctsio); 8644 return (CTL_RETVAL_COMPLETE); 8645 } 8646 } 8647 8648 switch (ctsio->cdb[0]) { 8649 case READ_6: 8650 case WRITE_6: { 8651 struct scsi_rw_6 *cdb; 8652 8653 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8654 8655 lba = scsi_3btoul(cdb->addr); 8656 /* only 5 bits are valid in the most significant address byte */ 8657 lba &= 0x1fffff; 8658 num_blocks = cdb->length; 8659 /* 8660 * This is correct according to SBC-2. 8661 */ 8662 if (num_blocks == 0) 8663 num_blocks = 256; 8664 break; 8665 } 8666 case READ_10: 8667 case WRITE_10: { 8668 struct scsi_rw_10 *cdb; 8669 8670 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8671 8672 if (cdb->byte2 & SRW10_RELADDR) 8673 reladdr = 1; 8674 if (cdb->byte2 & SRW10_FUA) 8675 fua = 1; 8676 if (cdb->byte2 & SRW10_DPO) 8677 dpo = 1; 8678 8679 if ((cdb->opcode == WRITE_10) 8680 && (cdb->byte2 & SRW10_EBP)) 8681 ebp = 1; 8682 8683 lba = scsi_4btoul(cdb->addr); 8684 num_blocks = scsi_2btoul(cdb->length); 8685 break; 8686 } 8687 case WRITE_VERIFY_10: { 8688 struct scsi_write_verify_10 *cdb; 8689 8690 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8691 8692 /* 8693 * XXX KDM we should do actual write verify support at some 8694 * point. This is obviously fake, we're just translating 8695 * things to a write. So we don't even bother checking the 8696 * BYTCHK field, since we don't do any verification. If 8697 * the user asks for it, we'll just pretend we did it. 8698 */ 8699 if (cdb->byte2 & SWV_DPO) 8700 dpo = 1; 8701 8702 lba = scsi_4btoul(cdb->addr); 8703 num_blocks = scsi_2btoul(cdb->length); 8704 break; 8705 } 8706 case READ_12: 8707 case WRITE_12: { 8708 struct scsi_rw_12 *cdb; 8709 8710 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8711 8712 if (cdb->byte2 & SRW12_RELADDR) 8713 reladdr = 1; 8714 if (cdb->byte2 & SRW12_FUA) 8715 fua = 1; 8716 if (cdb->byte2 & SRW12_DPO) 8717 dpo = 1; 8718 lba = scsi_4btoul(cdb->addr); 8719 num_blocks = scsi_4btoul(cdb->length); 8720 break; 8721 } 8722 case WRITE_VERIFY_12: { 8723 struct scsi_write_verify_12 *cdb; 8724 8725 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8726 8727 if (cdb->byte2 & SWV_DPO) 8728 dpo = 1; 8729 8730 lba = scsi_4btoul(cdb->addr); 8731 num_blocks = scsi_4btoul(cdb->length); 8732 8733 break; 8734 } 8735 case READ_16: 8736 case WRITE_16: { 8737 struct scsi_rw_16 *cdb; 8738 8739 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8740 8741 if (cdb->byte2 & SRW12_RELADDR) 8742 reladdr = 1; 8743 if (cdb->byte2 & SRW12_FUA) 8744 fua = 1; 8745 if (cdb->byte2 & SRW12_DPO) 8746 dpo = 1; 8747 8748 lba = scsi_8btou64(cdb->addr); 8749 num_blocks = scsi_4btoul(cdb->length); 8750 break; 8751 } 8752 case WRITE_VERIFY_16: { 8753 struct scsi_write_verify_16 *cdb; 8754 8755 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8756 8757 if (cdb->byte2 & SWV_DPO) 8758 dpo = 1; 8759 8760 lba = scsi_8btou64(cdb->addr); 8761 num_blocks = scsi_4btoul(cdb->length); 8762 break; 8763 } 8764 default: 8765 /* 8766 * We got a command we don't support. This shouldn't 8767 * happen, commands should be filtered out above us. 8768 */ 8769 ctl_set_invalid_opcode(ctsio); 8770 ctl_done((union ctl_io *)ctsio); 8771 8772 return (CTL_RETVAL_COMPLETE); 8773 break; /* NOTREACHED */ 8774 } 8775 8776 /* 8777 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 8778 * interesting for us, but if RAIDCore is in write-back mode, 8779 * getting it to do write-through for a particular transaction may 8780 * not be possible. 8781 */ 8782 /* 8783 * We don't support relative addressing. That also requires 8784 * supporting linked commands, which we don't do. 8785 */ 8786 if (reladdr != 0) { 8787 ctl_set_invalid_field(ctsio, 8788 /*sks_valid*/ 1, 8789 /*command*/ 1, 8790 /*field*/ 1, 8791 /*bit_valid*/ 1, 8792 /*bit*/ 0); 8793 ctl_done((union ctl_io *)ctsio); 8794 return (CTL_RETVAL_COMPLETE); 8795 } 8796 8797 /* 8798 * The first check is to make sure we're in bounds, the second 8799 * check is to catch wrap-around problems. If the lba + num blocks 8800 * is less than the lba, then we've wrapped around and the block 8801 * range is invalid anyway. 8802 */ 8803 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8804 || ((lba + num_blocks) < lba)) { 8805 ctl_set_lba_out_of_range(ctsio); 8806 ctl_done((union ctl_io *)ctsio); 8807 return (CTL_RETVAL_COMPLETE); 8808 } 8809 8810 /* 8811 * According to SBC-3, a transfer length of 0 is not an error. 8812 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8813 * translates to 256 blocks for those commands. 8814 */ 8815 if (num_blocks == 0) { 8816 ctl_set_success(ctsio); 8817 ctl_done((union ctl_io *)ctsio); 8818 return (CTL_RETVAL_COMPLETE); 8819 } 8820 8821 lbalen = (struct ctl_lba_len_flags *) 8822 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8823 lbalen->lba = lba; 8824 lbalen->len = num_blocks; 8825 lbalen->flags = isread ? CTL_LLF_READ : CTL_LLF_WRITE; 8826 8827 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8828 ctsio->kern_rel_offset = 0; 8829 8830 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8831 8832 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8833 8834 return (retval); 8835} 8836 8837static int 8838ctl_cnw_cont(union ctl_io *io) 8839{ 8840 struct ctl_scsiio *ctsio; 8841 struct ctl_lun *lun; 8842 struct ctl_lba_len_flags *lbalen; 8843 int retval; 8844 8845 ctsio = &io->scsiio; 8846 ctsio->io_hdr.status = CTL_STATUS_NONE; 8847 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8848 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8849 lbalen = (struct ctl_lba_len_flags *) 8850 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8851 lbalen->flags = CTL_LLF_WRITE; 8852 8853 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8854 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8855 return (retval); 8856} 8857 8858int 8859ctl_cnw(struct ctl_scsiio *ctsio) 8860{ 8861 struct ctl_lun *lun; 8862 struct ctl_lba_len_flags *lbalen; 8863 uint64_t lba; 8864 uint32_t num_blocks; 8865 int fua, dpo; 8866 int retval; 8867 8868 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8869 8870 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8871 8872 fua = 0; 8873 dpo = 0; 8874 8875 retval = CTL_RETVAL_COMPLETE; 8876 8877 switch (ctsio->cdb[0]) { 8878 case COMPARE_AND_WRITE: { 8879 struct scsi_compare_and_write *cdb; 8880 8881 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8882 8883 if (cdb->byte2 & SRW10_FUA) 8884 fua = 1; 8885 if (cdb->byte2 & SRW10_DPO) 8886 dpo = 1; 8887 lba = scsi_8btou64(cdb->addr); 8888 num_blocks = cdb->length; 8889 break; 8890 } 8891 default: 8892 /* 8893 * We got a command we don't support. This shouldn't 8894 * happen, commands should be filtered out above us. 8895 */ 8896 ctl_set_invalid_opcode(ctsio); 8897 ctl_done((union ctl_io *)ctsio); 8898 8899 return (CTL_RETVAL_COMPLETE); 8900 break; /* NOTREACHED */ 8901 } 8902 8903 /* 8904 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 8905 * interesting for us, but if RAIDCore is in write-back mode, 8906 * getting it to do write-through for a particular transaction may 8907 * not be possible. 8908 */ 8909 8910 /* 8911 * The first check is to make sure we're in bounds, the second 8912 * check is to catch wrap-around problems. If the lba + num blocks 8913 * is less than the lba, then we've wrapped around and the block 8914 * range is invalid anyway. 8915 */ 8916 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8917 || ((lba + num_blocks) < lba)) { 8918 ctl_set_lba_out_of_range(ctsio); 8919 ctl_done((union ctl_io *)ctsio); 8920 return (CTL_RETVAL_COMPLETE); 8921 } 8922 8923 /* 8924 * According to SBC-3, a transfer length of 0 is not an error. 8925 */ 8926 if (num_blocks == 0) { 8927 ctl_set_success(ctsio); 8928 ctl_done((union ctl_io *)ctsio); 8929 return (CTL_RETVAL_COMPLETE); 8930 } 8931 8932 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8933 ctsio->kern_rel_offset = 0; 8934 8935 /* 8936 * Set the IO_CONT flag, so that if this I/O gets passed to 8937 * ctl_data_submit_done(), it'll get passed back to 8938 * ctl_ctl_cnw_cont() for further processing. 8939 */ 8940 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8941 ctsio->io_cont = ctl_cnw_cont; 8942 8943 lbalen = (struct ctl_lba_len_flags *) 8944 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8945 lbalen->lba = lba; 8946 lbalen->len = num_blocks; 8947 lbalen->flags = CTL_LLF_COMPARE; 8948 8949 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8950 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8951 return (retval); 8952} 8953 8954int 8955ctl_verify(struct ctl_scsiio *ctsio) 8956{ 8957 struct ctl_lun *lun; 8958 struct ctl_lba_len_flags *lbalen; 8959 uint64_t lba; 8960 uint32_t num_blocks; 8961 int bytchk, dpo; 8962 int retval; 8963 8964 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8965 8966 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8967 8968 bytchk = 0; 8969 dpo = 0; 8970 retval = CTL_RETVAL_COMPLETE; 8971 8972 switch (ctsio->cdb[0]) { 8973 case VERIFY_10: { 8974 struct scsi_verify_10 *cdb; 8975 8976 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8977 if (cdb->byte2 & SVFY_BYTCHK) 8978 bytchk = 1; 8979 if (cdb->byte2 & SVFY_DPO) 8980 dpo = 1; 8981 lba = scsi_4btoul(cdb->addr); 8982 num_blocks = scsi_2btoul(cdb->length); 8983 break; 8984 } 8985 case VERIFY_12: { 8986 struct scsi_verify_12 *cdb; 8987 8988 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8989 if (cdb->byte2 & SVFY_BYTCHK) 8990 bytchk = 1; 8991 if (cdb->byte2 & SVFY_DPO) 8992 dpo = 1; 8993 lba = scsi_4btoul(cdb->addr); 8994 num_blocks = scsi_4btoul(cdb->length); 8995 break; 8996 } 8997 case VERIFY_16: { 8998 struct scsi_rw_16 *cdb; 8999 9000 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9001 if (cdb->byte2 & SVFY_BYTCHK) 9002 bytchk = 1; 9003 if (cdb->byte2 & SVFY_DPO) 9004 dpo = 1; 9005 lba = scsi_8btou64(cdb->addr); 9006 num_blocks = scsi_4btoul(cdb->length); 9007 break; 9008 } 9009 default: 9010 /* 9011 * We got a command we don't support. This shouldn't 9012 * happen, commands should be filtered out above us. 9013 */ 9014 ctl_set_invalid_opcode(ctsio); 9015 ctl_done((union ctl_io *)ctsio); 9016 return (CTL_RETVAL_COMPLETE); 9017 } 9018 9019 /* 9020 * The first check is to make sure we're in bounds, the second 9021 * check is to catch wrap-around problems. If the lba + num blocks 9022 * is less than the lba, then we've wrapped around and the block 9023 * range is invalid anyway. 9024 */ 9025 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9026 || ((lba + num_blocks) < lba)) { 9027 ctl_set_lba_out_of_range(ctsio); 9028 ctl_done((union ctl_io *)ctsio); 9029 return (CTL_RETVAL_COMPLETE); 9030 } 9031 9032 /* 9033 * According to SBC-3, a transfer length of 0 is not an error. 9034 */ 9035 if (num_blocks == 0) { 9036 ctl_set_success(ctsio); 9037 ctl_done((union ctl_io *)ctsio); 9038 return (CTL_RETVAL_COMPLETE); 9039 } 9040 9041 lbalen = (struct ctl_lba_len_flags *) 9042 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9043 lbalen->lba = lba; 9044 lbalen->len = num_blocks; 9045 if (bytchk) { 9046 lbalen->flags = CTL_LLF_COMPARE; 9047 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9048 } else { 9049 lbalen->flags = CTL_LLF_VERIFY; 9050 ctsio->kern_total_len = 0; 9051 } 9052 ctsio->kern_rel_offset = 0; 9053 9054 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9055 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9056 return (retval); 9057} 9058 9059int 9060ctl_report_luns(struct ctl_scsiio *ctsio) 9061{ 9062 struct scsi_report_luns *cdb; 9063 struct scsi_report_luns_data *lun_data; 9064 struct ctl_lun *lun, *request_lun; 9065 int num_luns, retval; 9066 uint32_t alloc_len, lun_datalen; 9067 int num_filled, well_known; 9068 uint32_t initidx, targ_lun_id, lun_id; 9069 9070 retval = CTL_RETVAL_COMPLETE; 9071 well_known = 0; 9072 9073 cdb = (struct scsi_report_luns *)ctsio->cdb; 9074 9075 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9076 9077 mtx_lock(&control_softc->ctl_lock); 9078 num_luns = control_softc->num_luns; 9079 mtx_unlock(&control_softc->ctl_lock); 9080 9081 switch (cdb->select_report) { 9082 case RPL_REPORT_DEFAULT: 9083 case RPL_REPORT_ALL: 9084 break; 9085 case RPL_REPORT_WELLKNOWN: 9086 well_known = 1; 9087 num_luns = 0; 9088 break; 9089 default: 9090 ctl_set_invalid_field(ctsio, 9091 /*sks_valid*/ 1, 9092 /*command*/ 1, 9093 /*field*/ 2, 9094 /*bit_valid*/ 0, 9095 /*bit*/ 0); 9096 ctl_done((union ctl_io *)ctsio); 9097 return (retval); 9098 break; /* NOTREACHED */ 9099 } 9100 9101 alloc_len = scsi_4btoul(cdb->length); 9102 /* 9103 * The initiator has to allocate at least 16 bytes for this request, 9104 * so he can at least get the header and the first LUN. Otherwise 9105 * we reject the request (per SPC-3 rev 14, section 6.21). 9106 */ 9107 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9108 sizeof(struct scsi_report_luns_lundata))) { 9109 ctl_set_invalid_field(ctsio, 9110 /*sks_valid*/ 1, 9111 /*command*/ 1, 9112 /*field*/ 6, 9113 /*bit_valid*/ 0, 9114 /*bit*/ 0); 9115 ctl_done((union ctl_io *)ctsio); 9116 return (retval); 9117 } 9118 9119 request_lun = (struct ctl_lun *) 9120 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9121 9122 lun_datalen = sizeof(*lun_data) + 9123 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9124 9125 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9126 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9127 ctsio->kern_sg_entries = 0; 9128 9129 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9130 9131 mtx_lock(&control_softc->ctl_lock); 9132 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9133 lun_id = targ_lun_id; 9134 if (ctsio->io_hdr.nexus.lun_map_fn != NULL) 9135 lun_id = ctsio->io_hdr.nexus.lun_map_fn(ctsio->io_hdr.nexus.lun_map_arg, lun_id); 9136 if (lun_id >= CTL_MAX_LUNS) 9137 continue; 9138 lun = control_softc->ctl_luns[lun_id]; 9139 if (lun == NULL) 9140 continue; 9141 9142 if (targ_lun_id <= 0xff) { 9143 /* 9144 * Peripheral addressing method, bus number 0. 9145 */ 9146 lun_data->luns[num_filled].lundata[0] = 9147 RPL_LUNDATA_ATYP_PERIPH; 9148 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9149 num_filled++; 9150 } else if (targ_lun_id <= 0x3fff) { 9151 /* 9152 * Flat addressing method. 9153 */ 9154 lun_data->luns[num_filled].lundata[0] = 9155 RPL_LUNDATA_ATYP_FLAT | 9156 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9157#ifdef OLDCTLHEADERS 9158 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9159 (targ_lun_id & SRLD_BUS_LUN_MASK); 9160#endif 9161 lun_data->luns[num_filled].lundata[1] = 9162#ifdef OLDCTLHEADERS 9163 targ_lun_id >> SRLD_BUS_LUN_BITS; 9164#endif 9165 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9166 num_filled++; 9167 } else { 9168 printf("ctl_report_luns: bogus LUN number %jd, " 9169 "skipping\n", (intmax_t)targ_lun_id); 9170 } 9171 /* 9172 * According to SPC-3, rev 14 section 6.21: 9173 * 9174 * "The execution of a REPORT LUNS command to any valid and 9175 * installed logical unit shall clear the REPORTED LUNS DATA 9176 * HAS CHANGED unit attention condition for all logical 9177 * units of that target with respect to the requesting 9178 * initiator. A valid and installed logical unit is one 9179 * having a PERIPHERAL QUALIFIER of 000b in the standard 9180 * INQUIRY data (see 6.4.2)." 9181 * 9182 * If request_lun is NULL, the LUN this report luns command 9183 * was issued to is either disabled or doesn't exist. In that 9184 * case, we shouldn't clear any pending lun change unit 9185 * attention. 9186 */ 9187 if (request_lun != NULL) 9188 lun->pending_sense[initidx].ua_pending &= 9189 ~CTL_UA_LUN_CHANGE; 9190 } 9191 mtx_unlock(&control_softc->ctl_lock); 9192 9193 /* 9194 * It's quite possible that we've returned fewer LUNs than we allocated 9195 * space for. Trim it. 9196 */ 9197 lun_datalen = sizeof(*lun_data) + 9198 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9199 9200 if (lun_datalen < alloc_len) { 9201 ctsio->residual = alloc_len - lun_datalen; 9202 ctsio->kern_data_len = lun_datalen; 9203 ctsio->kern_total_len = lun_datalen; 9204 } else { 9205 ctsio->residual = 0; 9206 ctsio->kern_data_len = alloc_len; 9207 ctsio->kern_total_len = alloc_len; 9208 } 9209 ctsio->kern_data_resid = 0; 9210 ctsio->kern_rel_offset = 0; 9211 ctsio->kern_sg_entries = 0; 9212 9213 /* 9214 * We set this to the actual data length, regardless of how much 9215 * space we actually have to return results. If the user looks at 9216 * this value, he'll know whether or not he allocated enough space 9217 * and reissue the command if necessary. We don't support well 9218 * known logical units, so if the user asks for that, return none. 9219 */ 9220 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9221 9222 /* 9223 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9224 * this request. 9225 */ 9226 ctsio->scsi_status = SCSI_STATUS_OK; 9227 9228 ctsio->be_move_done = ctl_config_move_done; 9229 ctl_datamove((union ctl_io *)ctsio); 9230 9231 return (retval); 9232} 9233 9234int 9235ctl_request_sense(struct ctl_scsiio *ctsio) 9236{ 9237 struct scsi_request_sense *cdb; 9238 struct scsi_sense_data *sense_ptr; 9239 struct ctl_lun *lun; 9240 uint32_t initidx; 9241 int have_error; 9242 scsi_sense_data_type sense_format; 9243 9244 cdb = (struct scsi_request_sense *)ctsio->cdb; 9245 9246 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9247 9248 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9249 9250 /* 9251 * Determine which sense format the user wants. 9252 */ 9253 if (cdb->byte2 & SRS_DESC) 9254 sense_format = SSD_TYPE_DESC; 9255 else 9256 sense_format = SSD_TYPE_FIXED; 9257 9258 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9259 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9260 ctsio->kern_sg_entries = 0; 9261 9262 /* 9263 * struct scsi_sense_data, which is currently set to 256 bytes, is 9264 * larger than the largest allowed value for the length field in the 9265 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9266 */ 9267 ctsio->residual = 0; 9268 ctsio->kern_data_len = cdb->length; 9269 ctsio->kern_total_len = cdb->length; 9270 9271 ctsio->kern_data_resid = 0; 9272 ctsio->kern_rel_offset = 0; 9273 ctsio->kern_sg_entries = 0; 9274 9275 /* 9276 * If we don't have a LUN, we don't have any pending sense. 9277 */ 9278 if (lun == NULL) 9279 goto no_sense; 9280 9281 have_error = 0; 9282 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9283 /* 9284 * Check for pending sense, and then for pending unit attentions. 9285 * Pending sense gets returned first, then pending unit attentions. 9286 */ 9287 mtx_lock(&lun->ctl_softc->ctl_lock); 9288 if (ctl_is_set(lun->have_ca, initidx)) { 9289 scsi_sense_data_type stored_format; 9290 9291 /* 9292 * Check to see which sense format was used for the stored 9293 * sense data. 9294 */ 9295 stored_format = scsi_sense_type( 9296 &lun->pending_sense[initidx].sense); 9297 9298 /* 9299 * If the user requested a different sense format than the 9300 * one we stored, then we need to convert it to the other 9301 * format. If we're going from descriptor to fixed format 9302 * sense data, we may lose things in translation, depending 9303 * on what options were used. 9304 * 9305 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9306 * for some reason we'll just copy it out as-is. 9307 */ 9308 if ((stored_format == SSD_TYPE_FIXED) 9309 && (sense_format == SSD_TYPE_DESC)) 9310 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9311 &lun->pending_sense[initidx].sense, 9312 (struct scsi_sense_data_desc *)sense_ptr); 9313 else if ((stored_format == SSD_TYPE_DESC) 9314 && (sense_format == SSD_TYPE_FIXED)) 9315 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9316 &lun->pending_sense[initidx].sense, 9317 (struct scsi_sense_data_fixed *)sense_ptr); 9318 else 9319 memcpy(sense_ptr, &lun->pending_sense[initidx].sense, 9320 ctl_min(sizeof(*sense_ptr), 9321 sizeof(lun->pending_sense[initidx].sense))); 9322 9323 ctl_clear_mask(lun->have_ca, initidx); 9324 have_error = 1; 9325 } else if (lun->pending_sense[initidx].ua_pending != CTL_UA_NONE) { 9326 ctl_ua_type ua_type; 9327 9328 ua_type = ctl_build_ua(lun->pending_sense[initidx].ua_pending, 9329 sense_ptr, sense_format); 9330 if (ua_type != CTL_UA_NONE) { 9331 have_error = 1; 9332 /* We're reporting this UA, so clear it */ 9333 lun->pending_sense[initidx].ua_pending &= ~ua_type; 9334 } 9335 } 9336 mtx_unlock(&lun->ctl_softc->ctl_lock); 9337 9338 /* 9339 * We already have a pending error, return it. 9340 */ 9341 if (have_error != 0) { 9342 /* 9343 * We report the SCSI status as OK, since the status of the 9344 * request sense command itself is OK. 9345 */ 9346 ctsio->scsi_status = SCSI_STATUS_OK; 9347 9348 /* 9349 * We report 0 for the sense length, because we aren't doing 9350 * autosense in this case. We're reporting sense as 9351 * parameter data. 9352 */ 9353 ctsio->sense_len = 0; 9354 9355 ctsio->be_move_done = ctl_config_move_done; 9356 ctl_datamove((union ctl_io *)ctsio); 9357 9358 return (CTL_RETVAL_COMPLETE); 9359 } 9360 9361no_sense: 9362 9363 /* 9364 * No sense information to report, so we report that everything is 9365 * okay. 9366 */ 9367 ctl_set_sense_data(sense_ptr, 9368 lun, 9369 sense_format, 9370 /*current_error*/ 1, 9371 /*sense_key*/ SSD_KEY_NO_SENSE, 9372 /*asc*/ 0x00, 9373 /*ascq*/ 0x00, 9374 SSD_ELEM_NONE); 9375 9376 ctsio->scsi_status = SCSI_STATUS_OK; 9377 9378 /* 9379 * We report 0 for the sense length, because we aren't doing 9380 * autosense in this case. We're reporting sense as parameter data. 9381 */ 9382 ctsio->sense_len = 0; 9383 ctsio->be_move_done = ctl_config_move_done; 9384 ctl_datamove((union ctl_io *)ctsio); 9385 9386 return (CTL_RETVAL_COMPLETE); 9387} 9388 9389int 9390ctl_tur(struct ctl_scsiio *ctsio) 9391{ 9392 struct ctl_lun *lun; 9393 9394 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9395 9396 CTL_DEBUG_PRINT(("ctl_tur\n")); 9397 9398 if (lun == NULL) 9399 return (EINVAL); 9400 9401 ctsio->scsi_status = SCSI_STATUS_OK; 9402 ctsio->io_hdr.status = CTL_SUCCESS; 9403 9404 ctl_done((union ctl_io *)ctsio); 9405 9406 return (CTL_RETVAL_COMPLETE); 9407} 9408 9409#ifdef notyet 9410static int 9411ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9412{ 9413 9414} 9415#endif 9416 9417static int 9418ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9419{ 9420 struct scsi_vpd_supported_pages *pages; 9421 int sup_page_size; 9422 struct ctl_lun *lun; 9423 9424 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9425 9426 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9427 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9428 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9429 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9430 ctsio->kern_sg_entries = 0; 9431 9432 if (sup_page_size < alloc_len) { 9433 ctsio->residual = alloc_len - sup_page_size; 9434 ctsio->kern_data_len = sup_page_size; 9435 ctsio->kern_total_len = sup_page_size; 9436 } else { 9437 ctsio->residual = 0; 9438 ctsio->kern_data_len = alloc_len; 9439 ctsio->kern_total_len = alloc_len; 9440 } 9441 ctsio->kern_data_resid = 0; 9442 ctsio->kern_rel_offset = 0; 9443 ctsio->kern_sg_entries = 0; 9444 9445 /* 9446 * The control device is always connected. The disk device, on the 9447 * other hand, may not be online all the time. Need to change this 9448 * to figure out whether the disk device is actually online or not. 9449 */ 9450 if (lun != NULL) 9451 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9452 lun->be_lun->lun_type; 9453 else 9454 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9455 9456 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9457 /* Supported VPD pages */ 9458 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9459 /* Serial Number */ 9460 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9461 /* Device Identification */ 9462 pages->page_list[2] = SVPD_DEVICE_ID; 9463 /* Block limits */ 9464 pages->page_list[3] = SVPD_BLOCK_LIMITS; 9465 /* Logical Block Provisioning */ 9466 pages->page_list[4] = SVPD_LBP; 9467 9468 ctsio->scsi_status = SCSI_STATUS_OK; 9469 9470 ctsio->be_move_done = ctl_config_move_done; 9471 ctl_datamove((union ctl_io *)ctsio); 9472 9473 return (CTL_RETVAL_COMPLETE); 9474} 9475 9476static int 9477ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9478{ 9479 struct scsi_vpd_unit_serial_number *sn_ptr; 9480 struct ctl_lun *lun; 9481#ifndef CTL_USE_BACKEND_SN 9482 char tmpstr[32]; 9483#endif 9484 9485 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9486 9487 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9488 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9489 ctsio->kern_sg_entries = 0; 9490 9491 if (sizeof(*sn_ptr) < alloc_len) { 9492 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9493 ctsio->kern_data_len = sizeof(*sn_ptr); 9494 ctsio->kern_total_len = sizeof(*sn_ptr); 9495 } else { 9496 ctsio->residual = 0; 9497 ctsio->kern_data_len = alloc_len; 9498 ctsio->kern_total_len = alloc_len; 9499 } 9500 ctsio->kern_data_resid = 0; 9501 ctsio->kern_rel_offset = 0; 9502 ctsio->kern_sg_entries = 0; 9503 9504 /* 9505 * The control device is always connected. The disk device, on the 9506 * other hand, may not be online all the time. Need to change this 9507 * to figure out whether the disk device is actually online or not. 9508 */ 9509 if (lun != NULL) 9510 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9511 lun->be_lun->lun_type; 9512 else 9513 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9514 9515 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9516 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9517#ifdef CTL_USE_BACKEND_SN 9518 /* 9519 * If we don't have a LUN, we just leave the serial number as 9520 * all spaces. 9521 */ 9522 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9523 if (lun != NULL) { 9524 strncpy((char *)sn_ptr->serial_num, 9525 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9526 } 9527#else 9528 /* 9529 * Note that we're using a non-unique serial number here, 9530 */ 9531 snprintf(tmpstr, sizeof(tmpstr), "MYSERIALNUMIS000"); 9532 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9533 strncpy(sn_ptr->serial_num, tmpstr, ctl_min(CTL_SN_LEN, 9534 ctl_min(sizeof(tmpstr), sizeof(*sn_ptr) - 4))); 9535#endif 9536 ctsio->scsi_status = SCSI_STATUS_OK; 9537 9538 ctsio->be_move_done = ctl_config_move_done; 9539 ctl_datamove((union ctl_io *)ctsio); 9540 9541 return (CTL_RETVAL_COMPLETE); 9542} 9543 9544 9545static int 9546ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9547{ 9548 struct scsi_vpd_device_id *devid_ptr; 9549 struct scsi_vpd_id_descriptor *desc, *desc1; 9550 struct scsi_vpd_id_descriptor *desc2, *desc3; /* for types 4h and 5h */ 9551 struct scsi_vpd_id_t10 *t10id; 9552 struct ctl_softc *ctl_softc; 9553 struct ctl_lun *lun; 9554 struct ctl_frontend *fe; 9555 char *val; 9556#ifndef CTL_USE_BACKEND_SN 9557 char tmpstr[32]; 9558#endif /* CTL_USE_BACKEND_SN */ 9559 int devid_len; 9560 9561 ctl_softc = control_softc; 9562 9563 mtx_lock(&ctl_softc->ctl_lock); 9564 fe = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9565 mtx_unlock(&ctl_softc->ctl_lock); 9566 9567 if (fe->devid != NULL) 9568 return ((fe->devid)(ctsio, alloc_len)); 9569 9570 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9571 9572 devid_len = sizeof(struct scsi_vpd_device_id) + 9573 sizeof(struct scsi_vpd_id_descriptor) + 9574 sizeof(struct scsi_vpd_id_t10) + CTL_DEVID_LEN + 9575 sizeof(struct scsi_vpd_id_descriptor) + CTL_WWPN_LEN + 9576 sizeof(struct scsi_vpd_id_descriptor) + 9577 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9578 sizeof(struct scsi_vpd_id_descriptor) + 9579 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9580 9581 ctsio->kern_data_ptr = malloc(devid_len, M_CTL, M_WAITOK | M_ZERO); 9582 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9583 ctsio->kern_sg_entries = 0; 9584 9585 if (devid_len < alloc_len) { 9586 ctsio->residual = alloc_len - devid_len; 9587 ctsio->kern_data_len = devid_len; 9588 ctsio->kern_total_len = devid_len; 9589 } else { 9590 ctsio->residual = 0; 9591 ctsio->kern_data_len = alloc_len; 9592 ctsio->kern_total_len = alloc_len; 9593 } 9594 ctsio->kern_data_resid = 0; 9595 ctsio->kern_rel_offset = 0; 9596 ctsio->kern_sg_entries = 0; 9597 9598 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9599 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 9600 desc1 = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9601 sizeof(struct scsi_vpd_id_t10) + CTL_DEVID_LEN); 9602 desc2 = (struct scsi_vpd_id_descriptor *)(&desc1->identifier[0] + 9603 CTL_WWPN_LEN); 9604 desc3 = (struct scsi_vpd_id_descriptor *)(&desc2->identifier[0] + 9605 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9606 9607 /* 9608 * The control device is always connected. The disk device, on the 9609 * other hand, may not be online all the time. 9610 */ 9611 if (lun != NULL) 9612 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9613 lun->be_lun->lun_type; 9614 else 9615 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9616 9617 devid_ptr->page_code = SVPD_DEVICE_ID; 9618 9619 scsi_ulto2b(devid_len - 4, devid_ptr->length); 9620 9621 mtx_lock(&ctl_softc->ctl_lock); 9622 9623 /* 9624 * For Fibre channel, 9625 */ 9626 if (fe->port_type == CTL_PORT_FC) 9627 { 9628 desc->proto_codeset = (SCSI_PROTO_FC << 4) | 9629 SVPD_ID_CODESET_ASCII; 9630 desc1->proto_codeset = (SCSI_PROTO_FC << 4) | 9631 SVPD_ID_CODESET_BINARY; 9632 } 9633 else 9634 { 9635 desc->proto_codeset = (SCSI_PROTO_SPI << 4) | 9636 SVPD_ID_CODESET_ASCII; 9637 desc1->proto_codeset = (SCSI_PROTO_SPI << 4) | 9638 SVPD_ID_CODESET_BINARY; 9639 } 9640 desc2->proto_codeset = desc3->proto_codeset = desc1->proto_codeset; 9641 mtx_unlock(&ctl_softc->ctl_lock); 9642 9643 /* 9644 * We're using a LUN association here. i.e., this device ID is a 9645 * per-LUN identifier. 9646 */ 9647 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 9648 desc->length = sizeof(*t10id) + CTL_DEVID_LEN; 9649 if (lun == NULL || (val = ctl_get_opt(lun->be_lun, "vendor")) == NULL) { 9650 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 9651 } else { 9652 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 9653 strncpy(t10id->vendor, val, 9654 min(sizeof(t10id->vendor), strlen(val))); 9655 } 9656 9657 /* 9658 * desc1 is for the WWPN which is a port asscociation. 9659 */ 9660 desc1->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | SVPD_ID_TYPE_NAA; 9661 desc1->length = CTL_WWPN_LEN; 9662 /* XXX Call Reggie's get_WWNN func here then add port # to the end */ 9663 /* For testing just create the WWPN */ 9664#if 0 9665 ddb_GetWWNN((char *)desc1->identifier); 9666 9667 /* NOTE: if the port is 0 or 8 we don't want to subtract 1 */ 9668 /* This is so Copancontrol will return something sane */ 9669 if (ctsio->io_hdr.nexus.targ_port!=0 && 9670 ctsio->io_hdr.nexus.targ_port!=8) 9671 desc1->identifier[7] += ctsio->io_hdr.nexus.targ_port-1; 9672 else 9673 desc1->identifier[7] += ctsio->io_hdr.nexus.targ_port; 9674#endif 9675 9676 be64enc(desc1->identifier, fe->wwpn); 9677 9678 /* 9679 * desc2 is for the Relative Target Port(type 4h) identifier 9680 */ 9681 desc2->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT 9682 | SVPD_ID_TYPE_RELTARG; 9683 desc2->length = 4; 9684//#if 0 9685 /* NOTE: if the port is 0 or 8 we don't want to subtract 1 */ 9686 /* This is so Copancontrol will return something sane */ 9687 if (ctsio->io_hdr.nexus.targ_port!=0 && 9688 ctsio->io_hdr.nexus.targ_port!=8) 9689 desc2->identifier[3] = ctsio->io_hdr.nexus.targ_port - 1; 9690 else 9691 desc2->identifier[3] = ctsio->io_hdr.nexus.targ_port; 9692//#endif 9693 9694 /* 9695 * desc3 is for the Target Port Group(type 5h) identifier 9696 */ 9697 desc3->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT 9698 | SVPD_ID_TYPE_TPORTGRP; 9699 desc3->length = 4; 9700 if (ctsio->io_hdr.nexus.targ_port < CTL_MAX_PORTS || ctl_is_single) 9701 desc3->identifier[3] = 1; 9702 else 9703 desc3->identifier[3] = 2; 9704 9705#ifdef CTL_USE_BACKEND_SN 9706 /* 9707 * If we've actually got a backend, copy the device id from the 9708 * per-LUN data. Otherwise, set it to all spaces. 9709 */ 9710 if (lun != NULL) { 9711 /* 9712 * Copy the backend's LUN ID. 9713 */ 9714 strncpy((char *)t10id->vendor_spec_id, 9715 (char *)lun->be_lun->device_id, CTL_DEVID_LEN); 9716 } else { 9717 /* 9718 * No backend, set this to spaces. 9719 */ 9720 memset(t10id->vendor_spec_id, 0x20, CTL_DEVID_LEN); 9721 } 9722#else 9723 snprintf(tmpstr, sizeof(tmpstr), "MYDEVICEIDIS%4d", 9724 (lun != NULL) ? (int)lun->lun : 0); 9725 strncpy(t10id->vendor_spec_id, tmpstr, ctl_min(CTL_DEVID_LEN, 9726 sizeof(tmpstr))); 9727#endif 9728 9729 ctsio->scsi_status = SCSI_STATUS_OK; 9730 9731 ctsio->be_move_done = ctl_config_move_done; 9732 ctl_datamove((union ctl_io *)ctsio); 9733 9734 return (CTL_RETVAL_COMPLETE); 9735} 9736 9737static int 9738ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9739{ 9740 struct scsi_vpd_block_limits *bl_ptr; 9741 struct ctl_lun *lun; 9742 int bs; 9743 9744 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9745 bs = lun->be_lun->blocksize; 9746 9747 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9748 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9749 ctsio->kern_sg_entries = 0; 9750 9751 if (sizeof(*bl_ptr) < alloc_len) { 9752 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9753 ctsio->kern_data_len = sizeof(*bl_ptr); 9754 ctsio->kern_total_len = sizeof(*bl_ptr); 9755 } else { 9756 ctsio->residual = 0; 9757 ctsio->kern_data_len = alloc_len; 9758 ctsio->kern_total_len = alloc_len; 9759 } 9760 ctsio->kern_data_resid = 0; 9761 ctsio->kern_rel_offset = 0; 9762 ctsio->kern_sg_entries = 0; 9763 9764 /* 9765 * The control device is always connected. The disk device, on the 9766 * other hand, may not be online all the time. Need to change this 9767 * to figure out whether the disk device is actually online or not. 9768 */ 9769 if (lun != NULL) 9770 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9771 lun->be_lun->lun_type; 9772 else 9773 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9774 9775 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9776 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 9777 bl_ptr->max_cmp_write_len = 0xff; 9778 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9779 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 9780 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9781 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 9782 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 9783 } 9784 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 9785 9786 ctsio->scsi_status = SCSI_STATUS_OK; 9787 ctsio->be_move_done = ctl_config_move_done; 9788 ctl_datamove((union ctl_io *)ctsio); 9789 9790 return (CTL_RETVAL_COMPLETE); 9791} 9792 9793static int 9794ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9795{ 9796 struct scsi_vpd_logical_block_prov *lbp_ptr; 9797 struct ctl_lun *lun; 9798 int bs; 9799 9800 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9801 bs = lun->be_lun->blocksize; 9802 9803 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9804 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9805 ctsio->kern_sg_entries = 0; 9806 9807 if (sizeof(*lbp_ptr) < alloc_len) { 9808 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9809 ctsio->kern_data_len = sizeof(*lbp_ptr); 9810 ctsio->kern_total_len = sizeof(*lbp_ptr); 9811 } else { 9812 ctsio->residual = 0; 9813 ctsio->kern_data_len = alloc_len; 9814 ctsio->kern_total_len = alloc_len; 9815 } 9816 ctsio->kern_data_resid = 0; 9817 ctsio->kern_rel_offset = 0; 9818 ctsio->kern_sg_entries = 0; 9819 9820 /* 9821 * The control device is always connected. The disk device, on the 9822 * other hand, may not be online all the time. Need to change this 9823 * to figure out whether the disk device is actually online or not. 9824 */ 9825 if (lun != NULL) 9826 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9827 lun->be_lun->lun_type; 9828 else 9829 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9830 9831 lbp_ptr->page_code = SVPD_LBP; 9832 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 9833 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | SVPD_LBP_WS10; 9834 9835 ctsio->scsi_status = SCSI_STATUS_OK; 9836 ctsio->be_move_done = ctl_config_move_done; 9837 ctl_datamove((union ctl_io *)ctsio); 9838 9839 return (CTL_RETVAL_COMPLETE); 9840} 9841 9842static int 9843ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9844{ 9845 struct scsi_inquiry *cdb; 9846 struct ctl_lun *lun; 9847 int alloc_len, retval; 9848 9849 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9850 cdb = (struct scsi_inquiry *)ctsio->cdb; 9851 9852 retval = CTL_RETVAL_COMPLETE; 9853 9854 alloc_len = scsi_2btoul(cdb->length); 9855 9856 switch (cdb->page_code) { 9857 case SVPD_SUPPORTED_PAGES: 9858 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 9859 break; 9860 case SVPD_UNIT_SERIAL_NUMBER: 9861 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 9862 break; 9863 case SVPD_DEVICE_ID: 9864 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 9865 break; 9866 case SVPD_BLOCK_LIMITS: 9867 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 9868 break; 9869 case SVPD_LBP: 9870 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 9871 break; 9872 default: 9873 ctl_set_invalid_field(ctsio, 9874 /*sks_valid*/ 1, 9875 /*command*/ 1, 9876 /*field*/ 2, 9877 /*bit_valid*/ 0, 9878 /*bit*/ 0); 9879 ctl_done((union ctl_io *)ctsio); 9880 retval = CTL_RETVAL_COMPLETE; 9881 break; 9882 } 9883 9884 return (retval); 9885} 9886 9887static int 9888ctl_inquiry_std(struct ctl_scsiio *ctsio) 9889{ 9890 struct scsi_inquiry_data *inq_ptr; 9891 struct scsi_inquiry *cdb; 9892 struct ctl_softc *ctl_softc; 9893 struct ctl_lun *lun; 9894 char *val; 9895 uint32_t alloc_len; 9896 int is_fc; 9897 9898 ctl_softc = control_softc; 9899 9900 /* 9901 * Figure out whether we're talking to a Fibre Channel port or not. 9902 * We treat the ioctl front end, and any SCSI adapters, as packetized 9903 * SCSI front ends. 9904 */ 9905 mtx_lock(&ctl_softc->ctl_lock); 9906 if (ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type != 9907 CTL_PORT_FC) 9908 is_fc = 0; 9909 else 9910 is_fc = 1; 9911 mtx_unlock(&ctl_softc->ctl_lock); 9912 9913 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9914 cdb = (struct scsi_inquiry *)ctsio->cdb; 9915 alloc_len = scsi_2btoul(cdb->length); 9916 9917 /* 9918 * We malloc the full inquiry data size here and fill it 9919 * in. If the user only asks for less, we'll give him 9920 * that much. 9921 */ 9922 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 9923 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 9924 ctsio->kern_sg_entries = 0; 9925 ctsio->kern_data_resid = 0; 9926 ctsio->kern_rel_offset = 0; 9927 9928 if (sizeof(*inq_ptr) < alloc_len) { 9929 ctsio->residual = alloc_len - sizeof(*inq_ptr); 9930 ctsio->kern_data_len = sizeof(*inq_ptr); 9931 ctsio->kern_total_len = sizeof(*inq_ptr); 9932 } else { 9933 ctsio->residual = 0; 9934 ctsio->kern_data_len = alloc_len; 9935 ctsio->kern_total_len = alloc_len; 9936 } 9937 9938 /* 9939 * If we have a LUN configured, report it as connected. Otherwise, 9940 * report that it is offline or no device is supported, depending 9941 * on the value of inquiry_pq_no_lun. 9942 * 9943 * According to the spec (SPC-4 r34), the peripheral qualifier 9944 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 9945 * 9946 * "A peripheral device having the specified peripheral device type 9947 * is not connected to this logical unit. However, the device 9948 * server is capable of supporting the specified peripheral device 9949 * type on this logical unit." 9950 * 9951 * According to the same spec, the peripheral qualifier 9952 * SID_QUAL_BAD_LU (011b) is used in this scenario: 9953 * 9954 * "The device server is not capable of supporting a peripheral 9955 * device on this logical unit. For this peripheral qualifier the 9956 * peripheral device type shall be set to 1Fh. All other peripheral 9957 * device type values are reserved for this peripheral qualifier." 9958 * 9959 * Given the text, it would seem that we probably want to report that 9960 * the LUN is offline here. There is no LUN connected, but we can 9961 * support a LUN at the given LUN number. 9962 * 9963 * In the real world, though, it sounds like things are a little 9964 * different: 9965 * 9966 * - Linux, when presented with a LUN with the offline peripheral 9967 * qualifier, will create an sg driver instance for it. So when 9968 * you attach it to CTL, you wind up with a ton of sg driver 9969 * instances. (One for every LUN that Linux bothered to probe.) 9970 * Linux does this despite the fact that it issues a REPORT LUNs 9971 * to LUN 0 to get the inventory of supported LUNs. 9972 * 9973 * - There is other anecdotal evidence (from Emulex folks) about 9974 * arrays that use the offline peripheral qualifier for LUNs that 9975 * are on the "passive" path in an active/passive array. 9976 * 9977 * So the solution is provide a hopefully reasonable default 9978 * (return bad/no LUN) and allow the user to change the behavior 9979 * with a tunable/sysctl variable. 9980 */ 9981 if (lun != NULL) 9982 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9983 lun->be_lun->lun_type; 9984 else if (ctl_softc->inquiry_pq_no_lun == 0) 9985 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9986 else 9987 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 9988 9989 /* RMB in byte 2 is 0 */ 9990 inq_ptr->version = SCSI_REV_SPC3; 9991 9992 /* 9993 * According to SAM-3, even if a device only supports a single 9994 * level of LUN addressing, it should still set the HISUP bit: 9995 * 9996 * 4.9.1 Logical unit numbers overview 9997 * 9998 * All logical unit number formats described in this standard are 9999 * hierarchical in structure even when only a single level in that 10000 * hierarchy is used. The HISUP bit shall be set to one in the 10001 * standard INQUIRY data (see SPC-2) when any logical unit number 10002 * format described in this standard is used. Non-hierarchical 10003 * formats are outside the scope of this standard. 10004 * 10005 * Therefore we set the HiSup bit here. 10006 * 10007 * The reponse format is 2, per SPC-3. 10008 */ 10009 inq_ptr->response_format = SID_HiSup | 2; 10010 10011 inq_ptr->additional_length = sizeof(*inq_ptr) - 4; 10012 CTL_DEBUG_PRINT(("additional_length = %d\n", 10013 inq_ptr->additional_length)); 10014 10015 inq_ptr->spc3_flags = SPC3_SID_TPGS_IMPLICIT; 10016 /* 16 bit addressing */ 10017 if (is_fc == 0) 10018 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10019 /* XXX set the SID_MultiP bit here if we're actually going to 10020 respond on multiple ports */ 10021 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10022 10023 /* 16 bit data bus, synchronous transfers */ 10024 /* XXX these flags don't apply for FC */ 10025 if (is_fc == 0) 10026 inq_ptr->flags = SID_WBus16 | SID_Sync; 10027 /* 10028 * XXX KDM do we want to support tagged queueing on the control 10029 * device at all? 10030 */ 10031 if ((lun == NULL) 10032 || (lun->be_lun->lun_type != T_PROCESSOR)) 10033 inq_ptr->flags |= SID_CmdQue; 10034 /* 10035 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10036 * We have 8 bytes for the vendor name, and 16 bytes for the device 10037 * name and 4 bytes for the revision. 10038 */ 10039 if (lun == NULL || (val = ctl_get_opt(lun->be_lun, "vendor")) == NULL) { 10040 strcpy(inq_ptr->vendor, CTL_VENDOR); 10041 } else { 10042 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10043 strncpy(inq_ptr->vendor, val, 10044 min(sizeof(inq_ptr->vendor), strlen(val))); 10045 } 10046 if (lun == NULL) { 10047 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10048 } else if ((val = ctl_get_opt(lun->be_lun, "product")) == NULL) { 10049 switch (lun->be_lun->lun_type) { 10050 case T_DIRECT: 10051 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10052 break; 10053 case T_PROCESSOR: 10054 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT); 10055 break; 10056 default: 10057 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT); 10058 break; 10059 } 10060 } else { 10061 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10062 strncpy(inq_ptr->product, val, 10063 min(sizeof(inq_ptr->product), strlen(val))); 10064 } 10065 10066 /* 10067 * XXX make this a macro somewhere so it automatically gets 10068 * incremented when we make changes. 10069 */ 10070 if (lun == NULL || (val = ctl_get_opt(lun->be_lun, "revision")) == NULL) { 10071 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10072 } else { 10073 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10074 strncpy(inq_ptr->revision, val, 10075 min(sizeof(inq_ptr->revision), strlen(val))); 10076 } 10077 10078 /* 10079 * For parallel SCSI, we support double transition and single 10080 * transition clocking. We also support QAS (Quick Arbitration 10081 * and Selection) and Information Unit transfers on both the 10082 * control and array devices. 10083 */ 10084 if (is_fc == 0) 10085 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10086 SID_SPI_IUS; 10087 10088 /* SAM-3 */ 10089 scsi_ulto2b(0x0060, inq_ptr->version1); 10090 /* SPC-3 (no version claimed) XXX should we claim a version? */ 10091 scsi_ulto2b(0x0300, inq_ptr->version2); 10092 if (is_fc) { 10093 /* FCP-2 ANSI INCITS.350:2003 */ 10094 scsi_ulto2b(0x0917, inq_ptr->version3); 10095 } else { 10096 /* SPI-4 ANSI INCITS.362:200x */ 10097 scsi_ulto2b(0x0B56, inq_ptr->version3); 10098 } 10099 10100 if (lun == NULL) { 10101 /* SBC-2 (no version claimed) XXX should we claim a version? */ 10102 scsi_ulto2b(0x0320, inq_ptr->version4); 10103 } else { 10104 switch (lun->be_lun->lun_type) { 10105 case T_DIRECT: 10106 /* 10107 * SBC-2 (no version claimed) XXX should we claim a 10108 * version? 10109 */ 10110 scsi_ulto2b(0x0320, inq_ptr->version4); 10111 break; 10112 case T_PROCESSOR: 10113 default: 10114 break; 10115 } 10116 } 10117 10118 ctsio->scsi_status = SCSI_STATUS_OK; 10119 if (ctsio->kern_data_len > 0) { 10120 ctsio->be_move_done = ctl_config_move_done; 10121 ctl_datamove((union ctl_io *)ctsio); 10122 } else { 10123 ctsio->io_hdr.status = CTL_SUCCESS; 10124 ctl_done((union ctl_io *)ctsio); 10125 } 10126 10127 return (CTL_RETVAL_COMPLETE); 10128} 10129 10130int 10131ctl_inquiry(struct ctl_scsiio *ctsio) 10132{ 10133 struct scsi_inquiry *cdb; 10134 int retval; 10135 10136 cdb = (struct scsi_inquiry *)ctsio->cdb; 10137 10138 retval = 0; 10139 10140 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10141 10142 /* 10143 * Right now, we don't support the CmdDt inquiry information. 10144 * This would be nice to support in the future. When we do 10145 * support it, we should change this test so that it checks to make 10146 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10147 */ 10148#ifdef notyet 10149 if (((cdb->byte2 & SI_EVPD) 10150 && (cdb->byte2 & SI_CMDDT))) 10151#endif 10152 if (cdb->byte2 & SI_CMDDT) { 10153 /* 10154 * Point to the SI_CMDDT bit. We might change this 10155 * when we support SI_CMDDT, but since both bits would be 10156 * "wrong", this should probably just stay as-is then. 10157 */ 10158 ctl_set_invalid_field(ctsio, 10159 /*sks_valid*/ 1, 10160 /*command*/ 1, 10161 /*field*/ 1, 10162 /*bit_valid*/ 1, 10163 /*bit*/ 1); 10164 ctl_done((union ctl_io *)ctsio); 10165 return (CTL_RETVAL_COMPLETE); 10166 } 10167 if (cdb->byte2 & SI_EVPD) 10168 retval = ctl_inquiry_evpd(ctsio); 10169#ifdef notyet 10170 else if (cdb->byte2 & SI_CMDDT) 10171 retval = ctl_inquiry_cmddt(ctsio); 10172#endif 10173 else 10174 retval = ctl_inquiry_std(ctsio); 10175 10176 return (retval); 10177} 10178 10179/* 10180 * For known CDB types, parse the LBA and length. 10181 */ 10182static int 10183ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10184{ 10185 if (io->io_hdr.io_type != CTL_IO_SCSI) 10186 return (1); 10187 10188 switch (io->scsiio.cdb[0]) { 10189 case COMPARE_AND_WRITE: { 10190 struct scsi_compare_and_write *cdb; 10191 10192 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10193 10194 *lba = scsi_8btou64(cdb->addr); 10195 *len = cdb->length; 10196 break; 10197 } 10198 case READ_6: 10199 case WRITE_6: { 10200 struct scsi_rw_6 *cdb; 10201 10202 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10203 10204 *lba = scsi_3btoul(cdb->addr); 10205 /* only 5 bits are valid in the most significant address byte */ 10206 *lba &= 0x1fffff; 10207 *len = cdb->length; 10208 break; 10209 } 10210 case READ_10: 10211 case WRITE_10: { 10212 struct scsi_rw_10 *cdb; 10213 10214 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10215 10216 *lba = scsi_4btoul(cdb->addr); 10217 *len = scsi_2btoul(cdb->length); 10218 break; 10219 } 10220 case WRITE_VERIFY_10: { 10221 struct scsi_write_verify_10 *cdb; 10222 10223 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10224 10225 *lba = scsi_4btoul(cdb->addr); 10226 *len = scsi_2btoul(cdb->length); 10227 break; 10228 } 10229 case READ_12: 10230 case WRITE_12: { 10231 struct scsi_rw_12 *cdb; 10232 10233 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10234 10235 *lba = scsi_4btoul(cdb->addr); 10236 *len = scsi_4btoul(cdb->length); 10237 break; 10238 } 10239 case WRITE_VERIFY_12: { 10240 struct scsi_write_verify_12 *cdb; 10241 10242 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10243 10244 *lba = scsi_4btoul(cdb->addr); 10245 *len = scsi_4btoul(cdb->length); 10246 break; 10247 } 10248 case READ_16: 10249 case WRITE_16: { 10250 struct scsi_rw_16 *cdb; 10251 10252 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10253 10254 *lba = scsi_8btou64(cdb->addr); 10255 *len = scsi_4btoul(cdb->length); 10256 break; 10257 } 10258 case WRITE_VERIFY_16: { 10259 struct scsi_write_verify_16 *cdb; 10260 10261 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10262 10263 10264 *lba = scsi_8btou64(cdb->addr); 10265 *len = scsi_4btoul(cdb->length); 10266 break; 10267 } 10268 case WRITE_SAME_10: { 10269 struct scsi_write_same_10 *cdb; 10270 10271 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10272 10273 *lba = scsi_4btoul(cdb->addr); 10274 *len = scsi_2btoul(cdb->length); 10275 break; 10276 } 10277 case WRITE_SAME_16: { 10278 struct scsi_write_same_16 *cdb; 10279 10280 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10281 10282 *lba = scsi_8btou64(cdb->addr); 10283 *len = scsi_4btoul(cdb->length); 10284 break; 10285 } 10286 case VERIFY_10: { 10287 struct scsi_verify_10 *cdb; 10288 10289 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10290 10291 *lba = scsi_4btoul(cdb->addr); 10292 *len = scsi_2btoul(cdb->length); 10293 break; 10294 } 10295 case VERIFY_12: { 10296 struct scsi_verify_12 *cdb; 10297 10298 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10299 10300 *lba = scsi_4btoul(cdb->addr); 10301 *len = scsi_4btoul(cdb->length); 10302 break; 10303 } 10304 case VERIFY_16: { 10305 struct scsi_verify_16 *cdb; 10306 10307 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10308 10309 *lba = scsi_8btou64(cdb->addr); 10310 *len = scsi_4btoul(cdb->length); 10311 break; 10312 } 10313 default: 10314 return (1); 10315 break; /* NOTREACHED */ 10316 } 10317 10318 return (0); 10319} 10320 10321static ctl_action 10322ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10323{ 10324 uint64_t endlba1, endlba2; 10325 10326 endlba1 = lba1 + len1 - 1; 10327 endlba2 = lba2 + len2 - 1; 10328 10329 if ((endlba1 < lba2) 10330 || (endlba2 < lba1)) 10331 return (CTL_ACTION_PASS); 10332 else 10333 return (CTL_ACTION_BLOCK); 10334} 10335 10336static ctl_action 10337ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10338{ 10339 uint64_t lba1, lba2; 10340 uint32_t len1, len2; 10341 int retval; 10342 10343 retval = ctl_get_lba_len(io1, &lba1, &len1); 10344 if (retval != 0) 10345 return (CTL_ACTION_ERROR); 10346 10347 retval = ctl_get_lba_len(io2, &lba2, &len2); 10348 if (retval != 0) 10349 return (CTL_ACTION_ERROR); 10350 10351 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10352} 10353 10354static ctl_action 10355ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10356{ 10357 struct ctl_cmd_entry *pending_entry, *ooa_entry; 10358 ctl_serialize_action *serialize_row; 10359 10360 /* 10361 * The initiator attempted multiple untagged commands at the same 10362 * time. Can't do that. 10363 */ 10364 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10365 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10366 && ((pending_io->io_hdr.nexus.targ_port == 10367 ooa_io->io_hdr.nexus.targ_port) 10368 && (pending_io->io_hdr.nexus.initid.id == 10369 ooa_io->io_hdr.nexus.initid.id)) 10370 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10371 return (CTL_ACTION_OVERLAP); 10372 10373 /* 10374 * The initiator attempted to send multiple tagged commands with 10375 * the same ID. (It's fine if different initiators have the same 10376 * tag ID.) 10377 * 10378 * Even if all of those conditions are true, we don't kill the I/O 10379 * if the command ahead of us has been aborted. We won't end up 10380 * sending it to the FETD, and it's perfectly legal to resend a 10381 * command with the same tag number as long as the previous 10382 * instance of this tag number has been aborted somehow. 10383 */ 10384 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10385 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10386 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10387 && ((pending_io->io_hdr.nexus.targ_port == 10388 ooa_io->io_hdr.nexus.targ_port) 10389 && (pending_io->io_hdr.nexus.initid.id == 10390 ooa_io->io_hdr.nexus.initid.id)) 10391 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10392 return (CTL_ACTION_OVERLAP_TAG); 10393 10394 /* 10395 * If we get a head of queue tag, SAM-3 says that we should 10396 * immediately execute it. 10397 * 10398 * What happens if this command would normally block for some other 10399 * reason? e.g. a request sense with a head of queue tag 10400 * immediately after a write. Normally that would block, but this 10401 * will result in its getting executed immediately... 10402 * 10403 * We currently return "pass" instead of "skip", so we'll end up 10404 * going through the rest of the queue to check for overlapped tags. 10405 * 10406 * XXX KDM check for other types of blockage first?? 10407 */ 10408 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10409 return (CTL_ACTION_PASS); 10410 10411 /* 10412 * Ordered tags have to block until all items ahead of them 10413 * have completed. If we get called with an ordered tag, we always 10414 * block, if something else is ahead of us in the queue. 10415 */ 10416 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10417 return (CTL_ACTION_BLOCK); 10418 10419 /* 10420 * Simple tags get blocked until all head of queue and ordered tags 10421 * ahead of them have completed. I'm lumping untagged commands in 10422 * with simple tags here. XXX KDM is that the right thing to do? 10423 */ 10424 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10425 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10426 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10427 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10428 return (CTL_ACTION_BLOCK); 10429 10430 pending_entry = &ctl_cmd_table[pending_io->scsiio.cdb[0]]; 10431 ooa_entry = &ctl_cmd_table[ooa_io->scsiio.cdb[0]]; 10432 10433 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10434 10435 switch (serialize_row[pending_entry->seridx]) { 10436 case CTL_SER_BLOCK: 10437 return (CTL_ACTION_BLOCK); 10438 break; /* NOTREACHED */ 10439 case CTL_SER_EXTENT: 10440 return (ctl_extent_check(pending_io, ooa_io)); 10441 break; /* NOTREACHED */ 10442 case CTL_SER_PASS: 10443 return (CTL_ACTION_PASS); 10444 break; /* NOTREACHED */ 10445 case CTL_SER_SKIP: 10446 return (CTL_ACTION_SKIP); 10447 break; 10448 default: 10449 panic("invalid serialization value %d", 10450 serialize_row[pending_entry->seridx]); 10451 break; /* NOTREACHED */ 10452 } 10453 10454 return (CTL_ACTION_ERROR); 10455} 10456 10457/* 10458 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10459 * Assumptions: 10460 * - pending_io is generally either incoming, or on the blocked queue 10461 * - starting I/O is the I/O we want to start the check with. 10462 */ 10463static ctl_action 10464ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10465 union ctl_io *starting_io) 10466{ 10467 union ctl_io *ooa_io; 10468 ctl_action action; 10469 10470 mtx_assert(&control_softc->ctl_lock, MA_OWNED); 10471 10472 /* 10473 * Run back along the OOA queue, starting with the current 10474 * blocked I/O and going through every I/O before it on the 10475 * queue. If starting_io is NULL, we'll just end up returning 10476 * CTL_ACTION_PASS. 10477 */ 10478 for (ooa_io = starting_io; ooa_io != NULL; 10479 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10480 ooa_links)){ 10481 10482 /* 10483 * This routine just checks to see whether 10484 * cur_blocked is blocked by ooa_io, which is ahead 10485 * of it in the queue. It doesn't queue/dequeue 10486 * cur_blocked. 10487 */ 10488 action = ctl_check_for_blockage(pending_io, ooa_io); 10489 switch (action) { 10490 case CTL_ACTION_BLOCK: 10491 case CTL_ACTION_OVERLAP: 10492 case CTL_ACTION_OVERLAP_TAG: 10493 case CTL_ACTION_SKIP: 10494 case CTL_ACTION_ERROR: 10495 return (action); 10496 break; /* NOTREACHED */ 10497 case CTL_ACTION_PASS: 10498 break; 10499 default: 10500 panic("invalid action %d", action); 10501 break; /* NOTREACHED */ 10502 } 10503 } 10504 10505 return (CTL_ACTION_PASS); 10506} 10507 10508/* 10509 * Assumptions: 10510 * - An I/O has just completed, and has been removed from the per-LUN OOA 10511 * queue, so some items on the blocked queue may now be unblocked. 10512 */ 10513static int 10514ctl_check_blocked(struct ctl_lun *lun) 10515{ 10516 union ctl_io *cur_blocked, *next_blocked; 10517 10518 mtx_assert(&control_softc->ctl_lock, MA_OWNED); 10519 10520 /* 10521 * Run forward from the head of the blocked queue, checking each 10522 * entry against the I/Os prior to it on the OOA queue to see if 10523 * there is still any blockage. 10524 * 10525 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10526 * with our removing a variable on it while it is traversing the 10527 * list. 10528 */ 10529 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10530 cur_blocked != NULL; cur_blocked = next_blocked) { 10531 union ctl_io *prev_ooa; 10532 ctl_action action; 10533 10534 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10535 blocked_links); 10536 10537 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10538 ctl_ooaq, ooa_links); 10539 10540 /* 10541 * If cur_blocked happens to be the first item in the OOA 10542 * queue now, prev_ooa will be NULL, and the action 10543 * returned will just be CTL_ACTION_PASS. 10544 */ 10545 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10546 10547 switch (action) { 10548 case CTL_ACTION_BLOCK: 10549 /* Nothing to do here, still blocked */ 10550 break; 10551 case CTL_ACTION_OVERLAP: 10552 case CTL_ACTION_OVERLAP_TAG: 10553 /* 10554 * This shouldn't happen! In theory we've already 10555 * checked this command for overlap... 10556 */ 10557 break; 10558 case CTL_ACTION_PASS: 10559 case CTL_ACTION_SKIP: { 10560 struct ctl_softc *softc; 10561 struct ctl_cmd_entry *entry; 10562 uint32_t initidx; 10563 uint8_t opcode; 10564 int isc_retval; 10565 10566 /* 10567 * The skip case shouldn't happen, this transaction 10568 * should have never made it onto the blocked queue. 10569 */ 10570 /* 10571 * This I/O is no longer blocked, we can remove it 10572 * from the blocked queue. Since this is a TAILQ 10573 * (doubly linked list), we can do O(1) removals 10574 * from any place on the list. 10575 */ 10576 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10577 blocked_links); 10578 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10579 10580 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10581 /* 10582 * Need to send IO back to original side to 10583 * run 10584 */ 10585 union ctl_ha_msg msg_info; 10586 10587 msg_info.hdr.original_sc = 10588 cur_blocked->io_hdr.original_sc; 10589 msg_info.hdr.serializing_sc = cur_blocked; 10590 msg_info.hdr.msg_type = CTL_MSG_R2R; 10591 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10592 &msg_info, sizeof(msg_info), 0)) > 10593 CTL_HA_STATUS_SUCCESS) { 10594 printf("CTL:Check Blocked error from " 10595 "ctl_ha_msg_send %d\n", 10596 isc_retval); 10597 } 10598 break; 10599 } 10600 opcode = cur_blocked->scsiio.cdb[0]; 10601 entry = &ctl_cmd_table[opcode]; 10602 softc = control_softc; 10603 10604 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 10605 10606 /* 10607 * Check this I/O for LUN state changes that may 10608 * have happened while this command was blocked. 10609 * The LUN state may have been changed by a command 10610 * ahead of us in the queue, so we need to re-check 10611 * for any states that can be caused by SCSI 10612 * commands. 10613 */ 10614 if (ctl_scsiio_lun_check(softc, lun, entry, 10615 &cur_blocked->scsiio) == 0) { 10616 cur_blocked->io_hdr.flags |= 10617 CTL_FLAG_IS_WAS_ON_RTR; 10618 STAILQ_INSERT_TAIL(&lun->ctl_softc->rtr_queue, 10619 &cur_blocked->io_hdr, links); 10620 /* 10621 * In the non CTL_DONE_THREAD case, we need 10622 * to wake up the work thread here. When 10623 * we're processing completed requests from 10624 * the work thread context, we'll pop back 10625 * around and end up pulling things off the 10626 * RtR queue. When we aren't processing 10627 * things from the work thread context, 10628 * though, we won't ever check the RtR queue. 10629 * So we need to wake up the thread to clear 10630 * things off the queue. Otherwise this 10631 * transaction will just sit on the RtR queue 10632 * until a new I/O comes in. (Which may or 10633 * may not happen...) 10634 */ 10635#ifndef CTL_DONE_THREAD 10636 ctl_wakeup_thread(); 10637#endif 10638 } else 10639 ctl_done_lock(cur_blocked, /*have_lock*/ 1); 10640 break; 10641 } 10642 default: 10643 /* 10644 * This probably shouldn't happen -- we shouldn't 10645 * get CTL_ACTION_ERROR, or anything else. 10646 */ 10647 break; 10648 } 10649 } 10650 10651 return (CTL_RETVAL_COMPLETE); 10652} 10653 10654/* 10655 * This routine (with one exception) checks LUN flags that can be set by 10656 * commands ahead of us in the OOA queue. These flags have to be checked 10657 * when a command initially comes in, and when we pull a command off the 10658 * blocked queue and are preparing to execute it. The reason we have to 10659 * check these flags for commands on the blocked queue is that the LUN 10660 * state may have been changed by a command ahead of us while we're on the 10661 * blocked queue. 10662 * 10663 * Ordering is somewhat important with these checks, so please pay 10664 * careful attention to the placement of any new checks. 10665 */ 10666static int 10667ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 10668 struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 10669{ 10670 int retval; 10671 10672 retval = 0; 10673 10674 /* 10675 * If this shelf is a secondary shelf controller, we have to reject 10676 * any media access commands. 10677 */ 10678#if 0 10679 /* No longer needed for HA */ 10680 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 10681 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 10682 ctl_set_lun_standby(ctsio); 10683 retval = 1; 10684 goto bailout; 10685 } 10686#endif 10687 10688 /* 10689 * Check for a reservation conflict. If this command isn't allowed 10690 * even on reserved LUNs, and if this initiator isn't the one who 10691 * reserved us, reject the command with a reservation conflict. 10692 */ 10693 if ((lun->flags & CTL_LUN_RESERVED) 10694 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 10695 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 10696 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 10697 || (ctsio->io_hdr.nexus.targ_target.id != 10698 lun->rsv_nexus.targ_target.id)) { 10699 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 10700 ctsio->io_hdr.status = CTL_SCSI_ERROR; 10701 retval = 1; 10702 goto bailout; 10703 } 10704 } 10705 10706 if ( (lun->flags & CTL_LUN_PR_RESERVED) 10707 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 10708 uint32_t residx; 10709 10710 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 10711 /* 10712 * if we aren't registered or it's a res holder type 10713 * reservation and this isn't the res holder then set a 10714 * conflict. 10715 * NOTE: Commands which might be allowed on write exclusive 10716 * type reservations are checked in the particular command 10717 * for a conflict. Read and SSU are the only ones. 10718 */ 10719 if (!lun->per_res[residx].registered 10720 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 10721 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 10722 ctsio->io_hdr.status = CTL_SCSI_ERROR; 10723 retval = 1; 10724 goto bailout; 10725 } 10726 10727 } 10728 10729 if ((lun->flags & CTL_LUN_OFFLINE) 10730 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 10731 ctl_set_lun_not_ready(ctsio); 10732 retval = 1; 10733 goto bailout; 10734 } 10735 10736 /* 10737 * If the LUN is stopped, see if this particular command is allowed 10738 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 10739 */ 10740 if ((lun->flags & CTL_LUN_STOPPED) 10741 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 10742 /* "Logical unit not ready, initializing cmd. required" */ 10743 ctl_set_lun_stopped(ctsio); 10744 retval = 1; 10745 goto bailout; 10746 } 10747 10748 if ((lun->flags & CTL_LUN_INOPERABLE) 10749 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 10750 /* "Medium format corrupted" */ 10751 ctl_set_medium_format_corrupted(ctsio); 10752 retval = 1; 10753 goto bailout; 10754 } 10755 10756bailout: 10757 return (retval); 10758 10759} 10760 10761static void 10762ctl_failover_io(union ctl_io *io, int have_lock) 10763{ 10764 ctl_set_busy(&io->scsiio); 10765 ctl_done_lock(io, have_lock); 10766} 10767 10768static void 10769ctl_failover(void) 10770{ 10771 struct ctl_lun *lun; 10772 struct ctl_softc *ctl_softc; 10773 union ctl_io *next_io, *pending_io; 10774 union ctl_io *io; 10775 int lun_idx; 10776 int i; 10777 10778 ctl_softc = control_softc; 10779 10780 mtx_lock(&ctl_softc->ctl_lock); 10781 /* 10782 * Remove any cmds from the other SC from the rtr queue. These 10783 * will obviously only be for LUNs for which we're the primary. 10784 * We can't send status or get/send data for these commands. 10785 * Since they haven't been executed yet, we can just remove them. 10786 * We'll either abort them or delete them below, depending on 10787 * which HA mode we're in. 10788 */ 10789 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 10790 io != NULL; io = next_io) { 10791 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 10792 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 10793 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 10794 ctl_io_hdr, links); 10795 } 10796 10797 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 10798 lun = ctl_softc->ctl_luns[lun_idx]; 10799 if (lun==NULL) 10800 continue; 10801 10802 /* 10803 * Processor LUNs are primary on both sides. 10804 * XXX will this always be true? 10805 */ 10806 if (lun->be_lun->lun_type == T_PROCESSOR) 10807 continue; 10808 10809 if ((lun->flags & CTL_LUN_PRIMARY_SC) 10810 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 10811 printf("FAILOVER: primary lun %d\n", lun_idx); 10812 /* 10813 * Remove all commands from the other SC. First from the 10814 * blocked queue then from the ooa queue. Once we have 10815 * removed them. Call ctl_check_blocked to see if there 10816 * is anything that can run. 10817 */ 10818 for (io = (union ctl_io *)TAILQ_FIRST( 10819 &lun->blocked_queue); io != NULL; io = next_io) { 10820 10821 next_io = (union ctl_io *)TAILQ_NEXT( 10822 &io->io_hdr, blocked_links); 10823 10824 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 10825 TAILQ_REMOVE(&lun->blocked_queue, 10826 &io->io_hdr,blocked_links); 10827 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10828 TAILQ_REMOVE(&lun->ooa_queue, 10829 &io->io_hdr, ooa_links); 10830 10831 ctl_free_io(io); 10832 } 10833 } 10834 10835 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 10836 io != NULL; io = next_io) { 10837 10838 next_io = (union ctl_io *)TAILQ_NEXT( 10839 &io->io_hdr, ooa_links); 10840 10841 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 10842 10843 TAILQ_REMOVE(&lun->ooa_queue, 10844 &io->io_hdr, 10845 ooa_links); 10846 10847 ctl_free_io(io); 10848 } 10849 } 10850 ctl_check_blocked(lun); 10851 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 10852 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 10853 10854 printf("FAILOVER: primary lun %d\n", lun_idx); 10855 /* 10856 * Abort all commands from the other SC. We can't 10857 * send status back for them now. These should get 10858 * cleaned up when they are completed or come out 10859 * for a datamove operation. 10860 */ 10861 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 10862 io != NULL; io = next_io) { 10863 next_io = (union ctl_io *)TAILQ_NEXT( 10864 &io->io_hdr, ooa_links); 10865 10866 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 10867 io->io_hdr.flags |= CTL_FLAG_ABORT; 10868 } 10869 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 10870 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 10871 10872 printf("FAILOVER: secondary lun %d\n", lun_idx); 10873 10874 lun->flags |= CTL_LUN_PRIMARY_SC; 10875 10876 /* 10877 * We send all I/O that was sent to this controller 10878 * and redirected to the other side back with 10879 * busy status, and have the initiator retry it. 10880 * Figuring out how much data has been transferred, 10881 * etc. and picking up where we left off would be 10882 * very tricky. 10883 * 10884 * XXX KDM need to remove I/O from the blocked 10885 * queue as well! 10886 */ 10887 for (pending_io = (union ctl_io *)TAILQ_FIRST( 10888 &lun->ooa_queue); pending_io != NULL; 10889 pending_io = next_io) { 10890 10891 next_io = (union ctl_io *)TAILQ_NEXT( 10892 &pending_io->io_hdr, ooa_links); 10893 10894 pending_io->io_hdr.flags &= 10895 ~CTL_FLAG_SENT_2OTHER_SC; 10896 10897 if (pending_io->io_hdr.flags & 10898 CTL_FLAG_IO_ACTIVE) { 10899 pending_io->io_hdr.flags |= 10900 CTL_FLAG_FAILOVER; 10901 } else { 10902 ctl_set_busy(&pending_io->scsiio); 10903 ctl_done_lock(pending_io, 10904 /*have_lock*/1); 10905 } 10906 } 10907 10908 /* 10909 * Build Unit Attention 10910 */ 10911 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 10912 lun->pending_sense[i].ua_pending |= 10913 CTL_UA_ASYM_ACC_CHANGE; 10914 } 10915 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 10916 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 10917 printf("FAILOVER: secondary lun %d\n", lun_idx); 10918 /* 10919 * if the first io on the OOA is not on the RtR queue 10920 * add it. 10921 */ 10922 lun->flags |= CTL_LUN_PRIMARY_SC; 10923 10924 pending_io = (union ctl_io *)TAILQ_FIRST( 10925 &lun->ooa_queue); 10926 if (pending_io==NULL) { 10927 printf("Nothing on OOA queue\n"); 10928 continue; 10929 } 10930 10931 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 10932 if ((pending_io->io_hdr.flags & 10933 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 10934 pending_io->io_hdr.flags |= 10935 CTL_FLAG_IS_WAS_ON_RTR; 10936 STAILQ_INSERT_TAIL(&ctl_softc->rtr_queue, 10937 &pending_io->io_hdr, links); 10938 } 10939#if 0 10940 else 10941 { 10942 printf("Tag 0x%04x is running\n", 10943 pending_io->scsiio.tag_num); 10944 } 10945#endif 10946 10947 next_io = (union ctl_io *)TAILQ_NEXT( 10948 &pending_io->io_hdr, ooa_links); 10949 for (pending_io=next_io; pending_io != NULL; 10950 pending_io = next_io) { 10951 pending_io->io_hdr.flags &= 10952 ~CTL_FLAG_SENT_2OTHER_SC; 10953 next_io = (union ctl_io *)TAILQ_NEXT( 10954 &pending_io->io_hdr, ooa_links); 10955 if (pending_io->io_hdr.flags & 10956 CTL_FLAG_IS_WAS_ON_RTR) { 10957#if 0 10958 printf("Tag 0x%04x is running\n", 10959 pending_io->scsiio.tag_num); 10960#endif 10961 continue; 10962 } 10963 10964 switch (ctl_check_ooa(lun, pending_io, 10965 (union ctl_io *)TAILQ_PREV( 10966 &pending_io->io_hdr, ctl_ooaq, 10967 ooa_links))) { 10968 10969 case CTL_ACTION_BLOCK: 10970 TAILQ_INSERT_TAIL(&lun->blocked_queue, 10971 &pending_io->io_hdr, 10972 blocked_links); 10973 pending_io->io_hdr.flags |= 10974 CTL_FLAG_BLOCKED; 10975 break; 10976 case CTL_ACTION_PASS: 10977 case CTL_ACTION_SKIP: 10978 pending_io->io_hdr.flags |= 10979 CTL_FLAG_IS_WAS_ON_RTR; 10980 STAILQ_INSERT_TAIL( 10981 &ctl_softc->rtr_queue, 10982 &pending_io->io_hdr, links); 10983 break; 10984 case CTL_ACTION_OVERLAP: 10985 ctl_set_overlapped_cmd( 10986 (struct ctl_scsiio *)pending_io); 10987 ctl_done_lock(pending_io, 10988 /*have_lock*/ 1); 10989 break; 10990 case CTL_ACTION_OVERLAP_TAG: 10991 ctl_set_overlapped_tag( 10992 (struct ctl_scsiio *)pending_io, 10993 pending_io->scsiio.tag_num & 0xff); 10994 ctl_done_lock(pending_io, 10995 /*have_lock*/ 1); 10996 break; 10997 case CTL_ACTION_ERROR: 10998 default: 10999 ctl_set_internal_failure( 11000 (struct ctl_scsiio *)pending_io, 11001 0, // sks_valid 11002 0); //retry count 11003 ctl_done_lock(pending_io, 11004 /*have_lock*/ 1); 11005 break; 11006 } 11007 } 11008 11009 /* 11010 * Build Unit Attention 11011 */ 11012 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11013 lun->pending_sense[i].ua_pending |= 11014 CTL_UA_ASYM_ACC_CHANGE; 11015 } 11016 } else { 11017 panic("Unhandled HA mode failover, LUN flags = %#x, " 11018 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11019 } 11020 } 11021 ctl_pause_rtr = 0; 11022 mtx_unlock(&ctl_softc->ctl_lock); 11023} 11024 11025static int 11026ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11027{ 11028 struct ctl_lun *lun; 11029 struct ctl_cmd_entry *entry; 11030 uint8_t opcode; 11031 uint32_t initidx, targ_lun; 11032 int retval; 11033 11034 retval = 0; 11035 11036 lun = NULL; 11037 11038 opcode = ctsio->cdb[0]; 11039 11040 mtx_lock(&ctl_softc->ctl_lock); 11041 11042 targ_lun = ctsio->io_hdr.nexus.targ_lun; 11043 if (ctsio->io_hdr.nexus.lun_map_fn != NULL) 11044 targ_lun = ctsio->io_hdr.nexus.lun_map_fn(ctsio->io_hdr.nexus.lun_map_arg, targ_lun); 11045 if ((targ_lun < CTL_MAX_LUNS) 11046 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11047 lun = ctl_softc->ctl_luns[targ_lun]; 11048 /* 11049 * If the LUN is invalid, pretend that it doesn't exist. 11050 * It will go away as soon as all pending I/O has been 11051 * completed. 11052 */ 11053 if (lun->flags & CTL_LUN_DISABLED) { 11054 lun = NULL; 11055 } else { 11056 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11057 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11058 lun->be_lun; 11059 if (lun->be_lun->lun_type == T_PROCESSOR) { 11060 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11061 } 11062 } 11063 } else { 11064 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11065 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11066 } 11067 11068 entry = &ctl_cmd_table[opcode]; 11069 11070 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11071 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11072 11073 /* 11074 * Check to see whether we can send this command to LUNs that don't 11075 * exist. This should pretty much only be the case for inquiry 11076 * and request sense. Further checks, below, really require having 11077 * a LUN, so we can't really check the command anymore. Just put 11078 * it on the rtr queue. 11079 */ 11080 if (lun == NULL) { 11081 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) 11082 goto queue_rtr; 11083 11084 ctl_set_unsupported_lun(ctsio); 11085 mtx_unlock(&ctl_softc->ctl_lock); 11086 ctl_done((union ctl_io *)ctsio); 11087 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11088 goto bailout; 11089 } else { 11090 /* 11091 * Every I/O goes into the OOA queue for a particular LUN, and 11092 * stays there until completion. 11093 */ 11094 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 11095 11096 /* 11097 * Make sure we support this particular command on this LUN. 11098 * e.g., we don't support writes to the control LUN. 11099 */ 11100 switch (lun->be_lun->lun_type) { 11101 case T_PROCESSOR: 11102 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11103 && ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) 11104 == 0)) { 11105 ctl_set_invalid_opcode(ctsio); 11106 mtx_unlock(&ctl_softc->ctl_lock); 11107 ctl_done((union ctl_io *)ctsio); 11108 goto bailout; 11109 } 11110 break; 11111 case T_DIRECT: 11112 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) 11113 && ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) 11114 == 0)){ 11115 ctl_set_invalid_opcode(ctsio); 11116 mtx_unlock(&ctl_softc->ctl_lock); 11117 ctl_done((union ctl_io *)ctsio); 11118 goto bailout; 11119 } 11120 break; 11121 default: 11122 printf("Unsupported CTL LUN type %d\n", 11123 lun->be_lun->lun_type); 11124 panic("Unsupported CTL LUN type %d\n", 11125 lun->be_lun->lun_type); 11126 break; /* NOTREACHED */ 11127 } 11128 } 11129 11130 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11131 11132 /* 11133 * If we've got a request sense, it'll clear the contingent 11134 * allegiance condition. Otherwise, if we have a CA condition for 11135 * this initiator, clear it, because it sent down a command other 11136 * than request sense. 11137 */ 11138 if ((opcode != REQUEST_SENSE) 11139 && (ctl_is_set(lun->have_ca, initidx))) 11140 ctl_clear_mask(lun->have_ca, initidx); 11141 11142 /* 11143 * If the command has this flag set, it handles its own unit 11144 * attention reporting, we shouldn't do anything. Otherwise we 11145 * check for any pending unit attentions, and send them back to the 11146 * initiator. We only do this when a command initially comes in, 11147 * not when we pull it off the blocked queue. 11148 * 11149 * According to SAM-3, section 5.3.2, the order that things get 11150 * presented back to the host is basically unit attentions caused 11151 * by some sort of reset event, busy status, reservation conflicts 11152 * or task set full, and finally any other status. 11153 * 11154 * One issue here is that some of the unit attentions we report 11155 * don't fall into the "reset" category (e.g. "reported luns data 11156 * has changed"). So reporting it here, before the reservation 11157 * check, may be technically wrong. I guess the only thing to do 11158 * would be to check for and report the reset events here, and then 11159 * check for the other unit attention types after we check for a 11160 * reservation conflict. 11161 * 11162 * XXX KDM need to fix this 11163 */ 11164 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11165 ctl_ua_type ua_type; 11166 11167 ua_type = lun->pending_sense[initidx].ua_pending; 11168 if (ua_type != CTL_UA_NONE) { 11169 scsi_sense_data_type sense_format; 11170 11171 if (lun != NULL) 11172 sense_format = (lun->flags & 11173 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11174 SSD_TYPE_FIXED; 11175 else 11176 sense_format = SSD_TYPE_FIXED; 11177 11178 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11179 sense_format); 11180 if (ua_type != CTL_UA_NONE) { 11181 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11182 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11183 CTL_AUTOSENSE; 11184 ctsio->sense_len = SSD_FULL_SIZE; 11185 lun->pending_sense[initidx].ua_pending &= 11186 ~ua_type; 11187 mtx_unlock(&ctl_softc->ctl_lock); 11188 ctl_done((union ctl_io *)ctsio); 11189 goto bailout; 11190 } 11191 } 11192 } 11193 11194 11195 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11196 mtx_unlock(&ctl_softc->ctl_lock); 11197 ctl_done((union ctl_io *)ctsio); 11198 goto bailout; 11199 } 11200 11201 /* 11202 * XXX CHD this is where we want to send IO to other side if 11203 * this LUN is secondary on this SC. We will need to make a copy 11204 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11205 * the copy we send as FROM_OTHER. 11206 * We also need to stuff the address of the original IO so we can 11207 * find it easily. Something similar will need be done on the other 11208 * side so when we are done we can find the copy. 11209 */ 11210 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11211 union ctl_ha_msg msg_info; 11212 int isc_retval; 11213 11214 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11215 11216 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11217 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11218#if 0 11219 printf("1. ctsio %p\n", ctsio); 11220#endif 11221 msg_info.hdr.serializing_sc = NULL; 11222 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11223 msg_info.scsi.tag_num = ctsio->tag_num; 11224 msg_info.scsi.tag_type = ctsio->tag_type; 11225 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11226 11227 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11228 11229 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11230 (void *)&msg_info, sizeof(msg_info), 0)) > 11231 CTL_HA_STATUS_SUCCESS) { 11232 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11233 isc_retval); 11234 printf("CTL:opcode is %x\n",opcode); 11235 } else { 11236#if 0 11237 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11238#endif 11239 } 11240 11241 /* 11242 * XXX KDM this I/O is off the incoming queue, but hasn't 11243 * been inserted on any other queue. We may need to come 11244 * up with a holding queue while we wait for serialization 11245 * so that we have an idea of what we're waiting for from 11246 * the other side. 11247 */ 11248 goto bailout_unlock; 11249 } 11250 11251 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11252 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11253 ctl_ooaq, ooa_links))) { 11254 case CTL_ACTION_BLOCK: 11255 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11256 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11257 blocked_links); 11258 goto bailout_unlock; 11259 break; /* NOTREACHED */ 11260 case CTL_ACTION_PASS: 11261 case CTL_ACTION_SKIP: 11262 goto queue_rtr; 11263 break; /* NOTREACHED */ 11264 case CTL_ACTION_OVERLAP: 11265 ctl_set_overlapped_cmd(ctsio); 11266 mtx_unlock(&ctl_softc->ctl_lock); 11267 ctl_done((union ctl_io *)ctsio); 11268 goto bailout; 11269 break; /* NOTREACHED */ 11270 case CTL_ACTION_OVERLAP_TAG: 11271 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11272 mtx_unlock(&ctl_softc->ctl_lock); 11273 ctl_done((union ctl_io *)ctsio); 11274 goto bailout; 11275 break; /* NOTREACHED */ 11276 case CTL_ACTION_ERROR: 11277 default: 11278 ctl_set_internal_failure(ctsio, 11279 /*sks_valid*/ 0, 11280 /*retry_count*/ 0); 11281 mtx_unlock(&ctl_softc->ctl_lock); 11282 ctl_done((union ctl_io *)ctsio); 11283 goto bailout; 11284 break; /* NOTREACHED */ 11285 } 11286 11287 goto bailout_unlock; 11288 11289queue_rtr: 11290 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11291 STAILQ_INSERT_TAIL(&ctl_softc->rtr_queue, &ctsio->io_hdr, links); 11292 11293bailout_unlock: 11294 mtx_unlock(&ctl_softc->ctl_lock); 11295 11296bailout: 11297 return (retval); 11298} 11299 11300static int 11301ctl_scsiio(struct ctl_scsiio *ctsio) 11302{ 11303 int retval; 11304 struct ctl_cmd_entry *entry; 11305 11306 retval = CTL_RETVAL_COMPLETE; 11307 11308 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11309 11310 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11311 11312 /* 11313 * If this I/O has been aborted, just send it straight to 11314 * ctl_done() without executing it. 11315 */ 11316 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11317 ctl_done((union ctl_io *)ctsio); 11318 goto bailout; 11319 } 11320 11321 /* 11322 * All the checks should have been handled by ctl_scsiio_precheck(). 11323 * We should be clear now to just execute the I/O. 11324 */ 11325 retval = entry->execute(ctsio); 11326 11327bailout: 11328 return (retval); 11329} 11330 11331/* 11332 * Since we only implement one target right now, a bus reset simply resets 11333 * our single target. 11334 */ 11335static int 11336ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11337{ 11338 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11339} 11340 11341static int 11342ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11343 ctl_ua_type ua_type) 11344{ 11345 struct ctl_lun *lun; 11346 int retval; 11347 11348 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11349 union ctl_ha_msg msg_info; 11350 11351 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11352 msg_info.hdr.nexus = io->io_hdr.nexus; 11353 if (ua_type==CTL_UA_TARG_RESET) 11354 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11355 else 11356 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11357 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11358 msg_info.hdr.original_sc = NULL; 11359 msg_info.hdr.serializing_sc = NULL; 11360 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11361 (void *)&msg_info, sizeof(msg_info), 0)) { 11362 } 11363 } 11364 retval = 0; 11365 11366 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11367 retval += ctl_lun_reset(lun, io, ua_type); 11368 11369 return (retval); 11370} 11371 11372/* 11373 * The LUN should always be set. The I/O is optional, and is used to 11374 * distinguish between I/Os sent by this initiator, and by other 11375 * initiators. We set unit attention for initiators other than this one. 11376 * SAM-3 is vague on this point. It does say that a unit attention should 11377 * be established for other initiators when a LUN is reset (see section 11378 * 5.7.3), but it doesn't specifically say that the unit attention should 11379 * be established for this particular initiator when a LUN is reset. Here 11380 * is the relevant text, from SAM-3 rev 8: 11381 * 11382 * 5.7.2 When a SCSI initiator port aborts its own tasks 11383 * 11384 * When a SCSI initiator port causes its own task(s) to be aborted, no 11385 * notification that the task(s) have been aborted shall be returned to 11386 * the SCSI initiator port other than the completion response for the 11387 * command or task management function action that caused the task(s) to 11388 * be aborted and notification(s) associated with related effects of the 11389 * action (e.g., a reset unit attention condition). 11390 * 11391 * XXX KDM for now, we're setting unit attention for all initiators. 11392 */ 11393static int 11394ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11395{ 11396 union ctl_io *xio; 11397#if 0 11398 uint32_t initindex; 11399#endif 11400 int i; 11401 11402 /* 11403 * Run through the OOA queue and abort each I/O. 11404 */ 11405#if 0 11406 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11407#endif 11408 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11409 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11410 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11411 } 11412 11413 /* 11414 * This version sets unit attention for every 11415 */ 11416#if 0 11417 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11418 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11419 if (initindex == i) 11420 continue; 11421 lun->pending_sense[i].ua_pending |= ua_type; 11422 } 11423#endif 11424 11425 /* 11426 * A reset (any kind, really) clears reservations established with 11427 * RESERVE/RELEASE. It does not clear reservations established 11428 * with PERSISTENT RESERVE OUT, but we don't support that at the 11429 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11430 * reservations made with the RESERVE/RELEASE commands, because 11431 * those commands are obsolete in SPC-3. 11432 */ 11433 lun->flags &= ~CTL_LUN_RESERVED; 11434 11435 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11436 ctl_clear_mask(lun->have_ca, i); 11437 lun->pending_sense[i].ua_pending |= ua_type; 11438 } 11439 11440 return (0); 11441} 11442 11443static int 11444ctl_abort_task(union ctl_io *io) 11445{ 11446 union ctl_io *xio; 11447 struct ctl_lun *lun; 11448 struct ctl_softc *ctl_softc; 11449#if 0 11450 struct sbuf sb; 11451 char printbuf[128]; 11452#endif 11453 int found; 11454 uint32_t targ_lun; 11455 11456 ctl_softc = control_softc; 11457 found = 0; 11458 11459 /* 11460 * Look up the LUN. 11461 */ 11462 targ_lun = io->io_hdr.nexus.targ_lun; 11463 if (io->io_hdr.nexus.lun_map_fn != NULL) 11464 targ_lun = io->io_hdr.nexus.lun_map_fn(io->io_hdr.nexus.lun_map_arg, targ_lun); 11465 if ((targ_lun < CTL_MAX_LUNS) 11466 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11467 lun = ctl_softc->ctl_luns[targ_lun]; 11468 else 11469 goto bailout; 11470 11471#if 0 11472 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11473 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11474#endif 11475 11476 /* 11477 * Run through the OOA queue and attempt to find the given I/O. 11478 * The target port, initiator ID, tag type and tag number have to 11479 * match the values that we got from the initiator. If we have an 11480 * untagged command to abort, simply abort the first untagged command 11481 * we come to. We only allow one untagged command at a time of course. 11482 */ 11483#if 0 11484 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11485#endif 11486 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11487 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11488#if 0 11489 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11490 11491 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11492 lun->lun, xio->scsiio.tag_num, 11493 xio->scsiio.tag_type, 11494 (xio->io_hdr.blocked_links.tqe_prev 11495 == NULL) ? "" : " BLOCKED", 11496 (xio->io_hdr.flags & 11497 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11498 (xio->io_hdr.flags & 11499 CTL_FLAG_ABORT) ? " ABORT" : "", 11500 (xio->io_hdr.flags & 11501 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11502 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11503 sbuf_finish(&sb); 11504 printf("%s\n", sbuf_data(&sb)); 11505#endif 11506 11507 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 11508 && (xio->io_hdr.nexus.initid.id == 11509 io->io_hdr.nexus.initid.id)) { 11510 /* 11511 * If the abort says that the task is untagged, the 11512 * task in the queue must be untagged. Otherwise, 11513 * we just check to see whether the tag numbers 11514 * match. This is because the QLogic firmware 11515 * doesn't pass back the tag type in an abort 11516 * request. 11517 */ 11518#if 0 11519 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 11520 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 11521 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 11522#endif 11523 /* 11524 * XXX KDM we've got problems with FC, because it 11525 * doesn't send down a tag type with aborts. So we 11526 * can only really go by the tag number... 11527 * This may cause problems with parallel SCSI. 11528 * Need to figure that out!! 11529 */ 11530 if (xio->scsiio.tag_num == io->taskio.tag_num) { 11531 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11532 found = 1; 11533 if ((io->io_hdr.flags & 11534 CTL_FLAG_FROM_OTHER_SC) == 0 && 11535 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11536 union ctl_ha_msg msg_info; 11537 11538 io->io_hdr.flags |= 11539 CTL_FLAG_SENT_2OTHER_SC; 11540 msg_info.hdr.nexus = io->io_hdr.nexus; 11541 msg_info.task.task_action = 11542 CTL_TASK_ABORT_TASK; 11543 msg_info.task.tag_num = 11544 io->taskio.tag_num; 11545 msg_info.task.tag_type = 11546 io->taskio.tag_type; 11547 msg_info.hdr.msg_type = 11548 CTL_MSG_MANAGE_TASKS; 11549 msg_info.hdr.original_sc = NULL; 11550 msg_info.hdr.serializing_sc = NULL; 11551#if 0 11552 printf("Sent Abort to other side\n"); 11553#endif 11554 if (CTL_HA_STATUS_SUCCESS != 11555 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11556 (void *)&msg_info, 11557 sizeof(msg_info), 0)) { 11558 } 11559 } 11560#if 0 11561 printf("ctl_abort_task: found I/O to abort\n"); 11562#endif 11563 break; 11564 } 11565 } 11566 } 11567 11568bailout: 11569 11570 if (found == 0) { 11571 /* 11572 * This isn't really an error. It's entirely possible for 11573 * the abort and command completion to cross on the wire. 11574 * This is more of an informative/diagnostic error. 11575 */ 11576#if 0 11577 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 11578 "%d:%d:%d:%d tag %d type %d\n", 11579 io->io_hdr.nexus.initid.id, 11580 io->io_hdr.nexus.targ_port, 11581 io->io_hdr.nexus.targ_target.id, 11582 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 11583 io->taskio.tag_type); 11584#endif 11585 return (1); 11586 } else 11587 return (0); 11588} 11589 11590/* 11591 * This routine cannot block! It must be callable from an interrupt 11592 * handler as well as from the work thread. 11593 */ 11594static void 11595ctl_run_task_queue(struct ctl_softc *ctl_softc) 11596{ 11597 union ctl_io *io, *next_io; 11598 11599 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 11600 11601 CTL_DEBUG_PRINT(("ctl_run_task_queue\n")); 11602 11603 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->task_queue); 11604 io != NULL; io = next_io) { 11605 int retval; 11606 const char *task_desc; 11607 11608 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11609 11610 retval = 0; 11611 11612 switch (io->io_hdr.io_type) { 11613 case CTL_IO_TASK: { 11614 task_desc = ctl_scsi_task_string(&io->taskio); 11615 if (task_desc != NULL) { 11616#ifdef NEEDTOPORT 11617 csevent_log(CSC_CTL | CSC_SHELF_SW | 11618 CTL_TASK_REPORT, 11619 csevent_LogType_Trace, 11620 csevent_Severity_Information, 11621 csevent_AlertLevel_Green, 11622 csevent_FRU_Firmware, 11623 csevent_FRU_Unknown, 11624 "CTL: received task: %s",task_desc); 11625#endif 11626 } else { 11627#ifdef NEEDTOPORT 11628 csevent_log(CSC_CTL | CSC_SHELF_SW | 11629 CTL_TASK_REPORT, 11630 csevent_LogType_Trace, 11631 csevent_Severity_Information, 11632 csevent_AlertLevel_Green, 11633 csevent_FRU_Firmware, 11634 csevent_FRU_Unknown, 11635 "CTL: received unknown task " 11636 "type: %d (%#x)", 11637 io->taskio.task_action, 11638 io->taskio.task_action); 11639#endif 11640 } 11641 switch (io->taskio.task_action) { 11642 case CTL_TASK_ABORT_TASK: 11643 retval = ctl_abort_task(io); 11644 break; 11645 case CTL_TASK_ABORT_TASK_SET: 11646 break; 11647 case CTL_TASK_CLEAR_ACA: 11648 break; 11649 case CTL_TASK_CLEAR_TASK_SET: 11650 break; 11651 case CTL_TASK_LUN_RESET: { 11652 struct ctl_lun *lun; 11653 uint32_t targ_lun; 11654 int retval; 11655 11656 targ_lun = io->io_hdr.nexus.targ_lun; 11657 if (io->io_hdr.nexus.lun_map_fn != NULL) 11658 targ_lun = io->io_hdr.nexus.lun_map_fn(io->io_hdr.nexus.lun_map_arg, targ_lun); 11659 11660 if ((targ_lun < CTL_MAX_LUNS) 11661 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11662 lun = ctl_softc->ctl_luns[targ_lun]; 11663 else { 11664 retval = 1; 11665 break; 11666 } 11667 11668 if (!(io->io_hdr.flags & 11669 CTL_FLAG_FROM_OTHER_SC)) { 11670 union ctl_ha_msg msg_info; 11671 11672 io->io_hdr.flags |= 11673 CTL_FLAG_SENT_2OTHER_SC; 11674 msg_info.hdr.msg_type = 11675 CTL_MSG_MANAGE_TASKS; 11676 msg_info.hdr.nexus = io->io_hdr.nexus; 11677 msg_info.task.task_action = 11678 CTL_TASK_LUN_RESET; 11679 msg_info.hdr.original_sc = NULL; 11680 msg_info.hdr.serializing_sc = NULL; 11681 if (CTL_HA_STATUS_SUCCESS != 11682 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11683 (void *)&msg_info, 11684 sizeof(msg_info), 0)) { 11685 } 11686 } 11687 11688 retval = ctl_lun_reset(lun, io, 11689 CTL_UA_LUN_RESET); 11690 break; 11691 } 11692 case CTL_TASK_TARGET_RESET: 11693 retval = ctl_target_reset(ctl_softc, io, 11694 CTL_UA_TARG_RESET); 11695 break; 11696 case CTL_TASK_BUS_RESET: 11697 retval = ctl_bus_reset(ctl_softc, io); 11698 break; 11699 case CTL_TASK_PORT_LOGIN: 11700 break; 11701 case CTL_TASK_PORT_LOGOUT: 11702 break; 11703 default: 11704 printf("ctl_run_task_queue: got unknown task " 11705 "management event %d\n", 11706 io->taskio.task_action); 11707 break; 11708 } 11709 if (retval == 0) 11710 io->io_hdr.status = CTL_SUCCESS; 11711 else 11712 io->io_hdr.status = CTL_ERROR; 11713 11714 STAILQ_REMOVE(&ctl_softc->task_queue, &io->io_hdr, 11715 ctl_io_hdr, links); 11716 /* 11717 * This will queue this I/O to the done queue, but the 11718 * work thread won't be able to process it until we 11719 * return and the lock is released. 11720 */ 11721 ctl_done_lock(io, /*have_lock*/ 1); 11722 break; 11723 } 11724 default: { 11725 11726 printf("%s: invalid I/O type %d msg %d cdb %x" 11727 " iptl: %ju:%d:%ju:%d tag 0x%04x\n", 11728 __func__, io->io_hdr.io_type, 11729 io->io_hdr.msg_type, io->scsiio.cdb[0], 11730 (uintmax_t)io->io_hdr.nexus.initid.id, 11731 io->io_hdr.nexus.targ_port, 11732 (uintmax_t)io->io_hdr.nexus.targ_target.id, 11733 io->io_hdr.nexus.targ_lun /* XXX */, 11734 (io->io_hdr.io_type == CTL_IO_TASK) ? 11735 io->taskio.tag_num : io->scsiio.tag_num); 11736 STAILQ_REMOVE(&ctl_softc->task_queue, &io->io_hdr, 11737 ctl_io_hdr, links); 11738 ctl_free_io(io); 11739 break; 11740 } 11741 } 11742 } 11743 11744 ctl_softc->flags &= ~CTL_FLAG_TASK_PENDING; 11745} 11746 11747/* 11748 * For HA operation. Handle commands that come in from the other 11749 * controller. 11750 */ 11751static void 11752ctl_handle_isc(union ctl_io *io) 11753{ 11754 int free_io; 11755 struct ctl_lun *lun; 11756 struct ctl_softc *ctl_softc; 11757 uint32_t targ_lun; 11758 11759 ctl_softc = control_softc; 11760 11761 targ_lun = io->io_hdr.nexus.targ_lun; 11762 if (io->io_hdr.nexus.lun_map_fn != NULL) 11763 targ_lun = io->io_hdr.nexus.lun_map_fn(io->io_hdr.nexus.lun_map_arg, targ_lun); 11764 lun = ctl_softc->ctl_luns[targ_lun]; 11765 11766 switch (io->io_hdr.msg_type) { 11767 case CTL_MSG_SERIALIZE: 11768 free_io = ctl_serialize_other_sc_cmd(&io->scsiio, 11769 /*have_lock*/ 0); 11770 break; 11771 case CTL_MSG_R2R: { 11772 uint8_t opcode; 11773 struct ctl_cmd_entry *entry; 11774 11775 /* 11776 * This is only used in SER_ONLY mode. 11777 */ 11778 free_io = 0; 11779 opcode = io->scsiio.cdb[0]; 11780 entry = &ctl_cmd_table[opcode]; 11781 mtx_lock(&ctl_softc->ctl_lock); 11782 if (ctl_scsiio_lun_check(ctl_softc, lun, 11783 entry, (struct ctl_scsiio *)io) != 0) { 11784 ctl_done_lock(io, /*have_lock*/ 1); 11785 mtx_unlock(&ctl_softc->ctl_lock); 11786 break; 11787 } 11788 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11789 STAILQ_INSERT_TAIL(&ctl_softc->rtr_queue, 11790 &io->io_hdr, links); 11791 mtx_unlock(&ctl_softc->ctl_lock); 11792 break; 11793 } 11794 case CTL_MSG_FINISH_IO: 11795 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 11796 free_io = 0; 11797 ctl_done_lock(io, /*have_lock*/ 0); 11798 } else { 11799 free_io = 1; 11800 mtx_lock(&ctl_softc->ctl_lock); 11801 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 11802 ooa_links); 11803 STAILQ_REMOVE(&ctl_softc->task_queue, 11804 &io->io_hdr, ctl_io_hdr, links); 11805 ctl_check_blocked(lun); 11806 mtx_unlock(&ctl_softc->ctl_lock); 11807 } 11808 break; 11809 case CTL_MSG_PERS_ACTION: 11810 ctl_hndl_per_res_out_on_other_sc( 11811 (union ctl_ha_msg *)&io->presio.pr_msg); 11812 free_io = 1; 11813 break; 11814 case CTL_MSG_BAD_JUJU: 11815 free_io = 0; 11816 ctl_done_lock(io, /*have_lock*/ 0); 11817 break; 11818 case CTL_MSG_DATAMOVE: 11819 /* Only used in XFER mode */ 11820 free_io = 0; 11821 ctl_datamove_remote(io); 11822 break; 11823 case CTL_MSG_DATAMOVE_DONE: 11824 /* Only used in XFER mode */ 11825 free_io = 0; 11826 io->scsiio.be_move_done(io); 11827 break; 11828 default: 11829 free_io = 1; 11830 printf("%s: Invalid message type %d\n", 11831 __func__, io->io_hdr.msg_type); 11832 break; 11833 } 11834 if (free_io) 11835 ctl_free_io(io); 11836 11837} 11838 11839 11840/* 11841 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 11842 * there is no match. 11843 */ 11844static ctl_lun_error_pattern 11845ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 11846{ 11847 struct ctl_cmd_entry *entry; 11848 ctl_lun_error_pattern filtered_pattern, pattern; 11849 uint8_t opcode; 11850 11851 pattern = desc->error_pattern; 11852 11853 /* 11854 * XXX KDM we need more data passed into this function to match a 11855 * custom pattern, and we actually need to implement custom pattern 11856 * matching. 11857 */ 11858 if (pattern & CTL_LUN_PAT_CMD) 11859 return (CTL_LUN_PAT_CMD); 11860 11861 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 11862 return (CTL_LUN_PAT_ANY); 11863 11864 opcode = ctsio->cdb[0]; 11865 entry = &ctl_cmd_table[opcode]; 11866 11867 filtered_pattern = entry->pattern & pattern; 11868 11869 /* 11870 * If the user requested specific flags in the pattern (e.g. 11871 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 11872 * flags. 11873 * 11874 * If the user did not specify any flags, it doesn't matter whether 11875 * or not the command supports the flags. 11876 */ 11877 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 11878 (pattern & ~CTL_LUN_PAT_MASK)) 11879 return (CTL_LUN_PAT_NONE); 11880 11881 /* 11882 * If the user asked for a range check, see if the requested LBA 11883 * range overlaps with this command's LBA range. 11884 */ 11885 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 11886 uint64_t lba1; 11887 uint32_t len1; 11888 ctl_action action; 11889 int retval; 11890 11891 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 11892 if (retval != 0) 11893 return (CTL_LUN_PAT_NONE); 11894 11895 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 11896 desc->lba_range.len); 11897 /* 11898 * A "pass" means that the LBA ranges don't overlap, so 11899 * this doesn't match the user's range criteria. 11900 */ 11901 if (action == CTL_ACTION_PASS) 11902 return (CTL_LUN_PAT_NONE); 11903 } 11904 11905 return (filtered_pattern); 11906} 11907 11908static void 11909ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 11910{ 11911 struct ctl_error_desc *desc, *desc2; 11912 11913 mtx_assert(&control_softc->ctl_lock, MA_OWNED); 11914 11915 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 11916 ctl_lun_error_pattern pattern; 11917 /* 11918 * Check to see whether this particular command matches 11919 * the pattern in the descriptor. 11920 */ 11921 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 11922 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 11923 continue; 11924 11925 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 11926 case CTL_LUN_INJ_ABORTED: 11927 ctl_set_aborted(&io->scsiio); 11928 break; 11929 case CTL_LUN_INJ_MEDIUM_ERR: 11930 ctl_set_medium_error(&io->scsiio); 11931 break; 11932 case CTL_LUN_INJ_UA: 11933 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 11934 * OCCURRED */ 11935 ctl_set_ua(&io->scsiio, 0x29, 0x00); 11936 break; 11937 case CTL_LUN_INJ_CUSTOM: 11938 /* 11939 * We're assuming the user knows what he is doing. 11940 * Just copy the sense information without doing 11941 * checks. 11942 */ 11943 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 11944 ctl_min(sizeof(desc->custom_sense), 11945 sizeof(io->scsiio.sense_data))); 11946 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 11947 io->scsiio.sense_len = SSD_FULL_SIZE; 11948 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11949 break; 11950 case CTL_LUN_INJ_NONE: 11951 default: 11952 /* 11953 * If this is an error injection type we don't know 11954 * about, clear the continuous flag (if it is set) 11955 * so it will get deleted below. 11956 */ 11957 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 11958 break; 11959 } 11960 /* 11961 * By default, each error injection action is a one-shot 11962 */ 11963 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 11964 continue; 11965 11966 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 11967 11968 free(desc, M_CTL); 11969 } 11970} 11971 11972#ifdef CTL_IO_DELAY 11973static void 11974ctl_datamove_timer_wakeup(void *arg) 11975{ 11976 union ctl_io *io; 11977 11978 io = (union ctl_io *)arg; 11979 11980 ctl_datamove(io); 11981} 11982#endif /* CTL_IO_DELAY */ 11983 11984void 11985ctl_datamove(union ctl_io *io) 11986{ 11987 void (*fe_datamove)(union ctl_io *io); 11988 11989 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 11990 11991 CTL_DEBUG_PRINT(("ctl_datamove\n")); 11992 11993#ifdef CTL_TIME_IO 11994 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 11995 char str[256]; 11996 char path_str[64]; 11997 struct sbuf sb; 11998 11999 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12000 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12001 12002 sbuf_cat(&sb, path_str); 12003 switch (io->io_hdr.io_type) { 12004 case CTL_IO_SCSI: 12005 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12006 sbuf_printf(&sb, "\n"); 12007 sbuf_cat(&sb, path_str); 12008 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12009 io->scsiio.tag_num, io->scsiio.tag_type); 12010 break; 12011 case CTL_IO_TASK: 12012 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12013 "Tag Type: %d\n", io->taskio.task_action, 12014 io->taskio.tag_num, io->taskio.tag_type); 12015 break; 12016 default: 12017 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12018 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12019 break; 12020 } 12021 sbuf_cat(&sb, path_str); 12022 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12023 (intmax_t)time_uptime - io->io_hdr.start_time); 12024 sbuf_finish(&sb); 12025 printf("%s", sbuf_data(&sb)); 12026 } 12027#endif /* CTL_TIME_IO */ 12028 12029 mtx_lock(&control_softc->ctl_lock); 12030#ifdef CTL_IO_DELAY 12031 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12032 struct ctl_lun *lun; 12033 12034 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12035 12036 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12037 } else { 12038 struct ctl_lun *lun; 12039 12040 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12041 if ((lun != NULL) 12042 && (lun->delay_info.datamove_delay > 0)) { 12043 struct callout *callout; 12044 12045 callout = (struct callout *)&io->io_hdr.timer_bytes; 12046 callout_init(callout, /*mpsafe*/ 1); 12047 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12048 callout_reset(callout, 12049 lun->delay_info.datamove_delay * hz, 12050 ctl_datamove_timer_wakeup, io); 12051 if (lun->delay_info.datamove_type == 12052 CTL_DELAY_TYPE_ONESHOT) 12053 lun->delay_info.datamove_delay = 0; 12054 mtx_unlock(&control_softc->ctl_lock); 12055 return; 12056 } 12057 } 12058#endif 12059 /* 12060 * If we have any pending task management commands, process them 12061 * first. This is necessary to eliminate a race condition with the 12062 * FETD: 12063 * 12064 * - FETD submits a task management command, like an abort. 12065 * - Back end calls fe_datamove() to move the data for the aborted 12066 * command. The FETD can't really accept it, but if it did, it 12067 * would end up transmitting data for a command that the initiator 12068 * told us to abort. 12069 * 12070 * We close the race by processing all pending task management 12071 * commands here (we can't block!), and then check this I/O to see 12072 * if it has been aborted. If so, return it to the back end with 12073 * bad status, so the back end can say return an error to the back end 12074 * and then when the back end returns an error, we can return the 12075 * aborted command to the FETD, so it can clean up its resources. 12076 */ 12077 if (control_softc->flags & CTL_FLAG_TASK_PENDING) 12078 ctl_run_task_queue(control_softc); 12079 12080 /* 12081 * This command has been aborted. Set the port status, so we fail 12082 * the data move. 12083 */ 12084 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12085 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12086 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12087 io->io_hdr.nexus.targ_port, 12088 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12089 io->io_hdr.nexus.targ_lun); 12090 io->io_hdr.status = CTL_CMD_ABORTED; 12091 io->io_hdr.port_status = 31337; 12092 mtx_unlock(&control_softc->ctl_lock); 12093 /* 12094 * Note that the backend, in this case, will get the 12095 * callback in its context. In other cases it may get 12096 * called in the frontend's interrupt thread context. 12097 */ 12098 io->scsiio.be_move_done(io); 12099 return; 12100 } 12101 12102 /* 12103 * If we're in XFER mode and this I/O is from the other shelf 12104 * controller, we need to send the DMA to the other side to 12105 * actually transfer the data to/from the host. In serialize only 12106 * mode the transfer happens below CTL and ctl_datamove() is only 12107 * called on the machine that originally received the I/O. 12108 */ 12109 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12110 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12111 union ctl_ha_msg msg; 12112 uint32_t sg_entries_sent; 12113 int do_sg_copy; 12114 int i; 12115 12116 memset(&msg, 0, sizeof(msg)); 12117 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12118 msg.hdr.original_sc = io->io_hdr.original_sc; 12119 msg.hdr.serializing_sc = io; 12120 msg.hdr.nexus = io->io_hdr.nexus; 12121 msg.dt.flags = io->io_hdr.flags; 12122 /* 12123 * We convert everything into a S/G list here. We can't 12124 * pass by reference, only by value between controllers. 12125 * So we can't pass a pointer to the S/G list, only as many 12126 * S/G entries as we can fit in here. If it's possible for 12127 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12128 * then we need to break this up into multiple transfers. 12129 */ 12130 if (io->scsiio.kern_sg_entries == 0) { 12131 msg.dt.kern_sg_entries = 1; 12132 /* 12133 * If this is in cached memory, flush the cache 12134 * before we send the DMA request to the other 12135 * controller. We want to do this in either the 12136 * read or the write case. The read case is 12137 * straightforward. In the write case, we want to 12138 * make sure nothing is in the local cache that 12139 * could overwrite the DMAed data. 12140 */ 12141 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12142 /* 12143 * XXX KDM use bus_dmamap_sync() here. 12144 */ 12145 } 12146 12147 /* 12148 * Convert to a physical address if this is a 12149 * virtual address. 12150 */ 12151 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12152 msg.dt.sg_list[0].addr = 12153 io->scsiio.kern_data_ptr; 12154 } else { 12155 /* 12156 * XXX KDM use busdma here! 12157 */ 12158#if 0 12159 msg.dt.sg_list[0].addr = (void *) 12160 vtophys(io->scsiio.kern_data_ptr); 12161#endif 12162 } 12163 12164 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12165 do_sg_copy = 0; 12166 } else { 12167 struct ctl_sg_entry *sgl; 12168 12169 do_sg_copy = 1; 12170 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12171 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12172 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12173 /* 12174 * XXX KDM use bus_dmamap_sync() here. 12175 */ 12176 } 12177 } 12178 12179 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12180 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12181 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12182 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12183 msg.dt.sg_sequence = 0; 12184 12185 /* 12186 * Loop until we've sent all of the S/G entries. On the 12187 * other end, we'll recompose these S/G entries into one 12188 * contiguous list before passing it to the 12189 */ 12190 for (sg_entries_sent = 0; sg_entries_sent < 12191 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12192 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12193 sizeof(msg.dt.sg_list[0])), 12194 msg.dt.kern_sg_entries - sg_entries_sent); 12195 12196 if (do_sg_copy != 0) { 12197 struct ctl_sg_entry *sgl; 12198 int j; 12199 12200 sgl = (struct ctl_sg_entry *) 12201 io->scsiio.kern_data_ptr; 12202 /* 12203 * If this is in cached memory, flush the cache 12204 * before we send the DMA request to the other 12205 * controller. We want to do this in either 12206 * the * read or the write case. The read 12207 * case is straightforward. In the write 12208 * case, we want to make sure nothing is 12209 * in the local cache that could overwrite 12210 * the DMAed data. 12211 */ 12212 12213 for (i = sg_entries_sent, j = 0; 12214 i < msg.dt.cur_sg_entries; i++, j++) { 12215 if ((io->io_hdr.flags & 12216 CTL_FLAG_NO_DATASYNC) == 0) { 12217 /* 12218 * XXX KDM use bus_dmamap_sync() 12219 */ 12220 } 12221 if ((io->io_hdr.flags & 12222 CTL_FLAG_BUS_ADDR) == 0) { 12223 /* 12224 * XXX KDM use busdma. 12225 */ 12226#if 0 12227 msg.dt.sg_list[j].addr =(void *) 12228 vtophys(sgl[i].addr); 12229#endif 12230 } else { 12231 msg.dt.sg_list[j].addr = 12232 sgl[i].addr; 12233 } 12234 msg.dt.sg_list[j].len = sgl[i].len; 12235 } 12236 } 12237 12238 sg_entries_sent += msg.dt.cur_sg_entries; 12239 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12240 msg.dt.sg_last = 1; 12241 else 12242 msg.dt.sg_last = 0; 12243 12244 /* 12245 * XXX KDM drop and reacquire the lock here? 12246 */ 12247 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12248 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12249 /* 12250 * XXX do something here. 12251 */ 12252 } 12253 12254 msg.dt.sent_sg_entries = sg_entries_sent; 12255 } 12256 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12257 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12258 ctl_failover_io(io, /*have_lock*/ 1); 12259 12260 } else { 12261 12262 /* 12263 * Lookup the fe_datamove() function for this particular 12264 * front end. 12265 */ 12266 fe_datamove = 12267 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12268 mtx_unlock(&control_softc->ctl_lock); 12269 12270 fe_datamove(io); 12271 } 12272} 12273 12274static void 12275ctl_send_datamove_done(union ctl_io *io, int have_lock) 12276{ 12277 union ctl_ha_msg msg; 12278 int isc_status; 12279 12280 memset(&msg, 0, sizeof(msg)); 12281 12282 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12283 msg.hdr.original_sc = io; 12284 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12285 msg.hdr.nexus = io->io_hdr.nexus; 12286 msg.hdr.status = io->io_hdr.status; 12287 msg.scsi.tag_num = io->scsiio.tag_num; 12288 msg.scsi.tag_type = io->scsiio.tag_type; 12289 msg.scsi.scsi_status = io->scsiio.scsi_status; 12290 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12291 sizeof(io->scsiio.sense_data)); 12292 msg.scsi.sense_len = io->scsiio.sense_len; 12293 msg.scsi.sense_residual = io->scsiio.sense_residual; 12294 msg.scsi.fetd_status = io->io_hdr.port_status; 12295 msg.scsi.residual = io->scsiio.residual; 12296 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12297 12298 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12299 ctl_failover_io(io, /*have_lock*/ have_lock); 12300 return; 12301 } 12302 12303 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12304 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12305 /* XXX do something if this fails */ 12306 } 12307 12308} 12309 12310/* 12311 * The DMA to the remote side is done, now we need to tell the other side 12312 * we're done so it can continue with its data movement. 12313 */ 12314static void 12315ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12316{ 12317 union ctl_io *io; 12318 12319 io = rq->context; 12320 12321 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12322 printf("%s: ISC DMA write failed with error %d", __func__, 12323 rq->ret); 12324 ctl_set_internal_failure(&io->scsiio, 12325 /*sks_valid*/ 1, 12326 /*retry_count*/ rq->ret); 12327 } 12328 12329 ctl_dt_req_free(rq); 12330 12331 /* 12332 * In this case, we had to malloc the memory locally. Free it. 12333 */ 12334 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12335 int i; 12336 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12337 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12338 } 12339 /* 12340 * The data is in local and remote memory, so now we need to send 12341 * status (good or back) back to the other side. 12342 */ 12343 ctl_send_datamove_done(io, /*have_lock*/ 0); 12344} 12345 12346/* 12347 * We've moved the data from the host/controller into local memory. Now we 12348 * need to push it over to the remote controller's memory. 12349 */ 12350static int 12351ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12352{ 12353 int retval; 12354 12355 retval = 0; 12356 12357 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12358 ctl_datamove_remote_write_cb); 12359 12360 return (retval); 12361} 12362 12363static void 12364ctl_datamove_remote_write(union ctl_io *io) 12365{ 12366 int retval; 12367 void (*fe_datamove)(union ctl_io *io); 12368 12369 /* 12370 * - Get the data from the host/HBA into local memory. 12371 * - DMA memory from the local controller to the remote controller. 12372 * - Send status back to the remote controller. 12373 */ 12374 12375 retval = ctl_datamove_remote_sgl_setup(io); 12376 if (retval != 0) 12377 return; 12378 12379 /* Switch the pointer over so the FETD knows what to do */ 12380 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12381 12382 /* 12383 * Use a custom move done callback, since we need to send completion 12384 * back to the other controller, not to the backend on this side. 12385 */ 12386 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12387 12388 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12389 12390 fe_datamove(io); 12391 12392 return; 12393 12394} 12395 12396static int 12397ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12398{ 12399#if 0 12400 char str[256]; 12401 char path_str[64]; 12402 struct sbuf sb; 12403#endif 12404 12405 /* 12406 * In this case, we had to malloc the memory locally. Free it. 12407 */ 12408 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12409 int i; 12410 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12411 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12412 } 12413 12414#if 0 12415 scsi_path_string(io, path_str, sizeof(path_str)); 12416 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12417 sbuf_cat(&sb, path_str); 12418 scsi_command_string(&io->scsiio, NULL, &sb); 12419 sbuf_printf(&sb, "\n"); 12420 sbuf_cat(&sb, path_str); 12421 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12422 io->scsiio.tag_num, io->scsiio.tag_type); 12423 sbuf_cat(&sb, path_str); 12424 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12425 io->io_hdr.flags, io->io_hdr.status); 12426 sbuf_finish(&sb); 12427 printk("%s", sbuf_data(&sb)); 12428#endif 12429 12430 12431 /* 12432 * The read is done, now we need to send status (good or bad) back 12433 * to the other side. 12434 */ 12435 ctl_send_datamove_done(io, /*have_lock*/ 0); 12436 12437 return (0); 12438} 12439 12440static void 12441ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12442{ 12443 union ctl_io *io; 12444 void (*fe_datamove)(union ctl_io *io); 12445 12446 io = rq->context; 12447 12448 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12449 printf("%s: ISC DMA read failed with error %d", __func__, 12450 rq->ret); 12451 ctl_set_internal_failure(&io->scsiio, 12452 /*sks_valid*/ 1, 12453 /*retry_count*/ rq->ret); 12454 } 12455 12456 ctl_dt_req_free(rq); 12457 12458 /* Switch the pointer over so the FETD knows what to do */ 12459 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12460 12461 /* 12462 * Use a custom move done callback, since we need to send completion 12463 * back to the other controller, not to the backend on this side. 12464 */ 12465 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12466 12467 /* XXX KDM add checks like the ones in ctl_datamove? */ 12468 12469 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12470 12471 fe_datamove(io); 12472} 12473 12474static int 12475ctl_datamove_remote_sgl_setup(union ctl_io *io) 12476{ 12477 struct ctl_sg_entry *local_sglist, *remote_sglist; 12478 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12479 struct ctl_softc *softc; 12480 int retval; 12481 int i; 12482 12483 retval = 0; 12484 softc = control_softc; 12485 12486 local_sglist = io->io_hdr.local_sglist; 12487 local_dma_sglist = io->io_hdr.local_dma_sglist; 12488 remote_sglist = io->io_hdr.remote_sglist; 12489 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12490 12491 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12492 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12493 local_sglist[i].len = remote_sglist[i].len; 12494 12495 /* 12496 * XXX Detect the situation where the RS-level I/O 12497 * redirector on the other side has already read the 12498 * data off of the AOR RS on this side, and 12499 * transferred it to remote (mirror) memory on the 12500 * other side. Since we already have the data in 12501 * memory here, we just need to use it. 12502 * 12503 * XXX KDM this can probably be removed once we 12504 * get the cache device code in and take the 12505 * current AOR implementation out. 12506 */ 12507#ifdef NEEDTOPORT 12508 if ((remote_sglist[i].addr >= 12509 (void *)vtophys(softc->mirr->addr)) 12510 && (remote_sglist[i].addr < 12511 ((void *)vtophys(softc->mirr->addr) + 12512 CacheMirrorOffset))) { 12513 local_sglist[i].addr = remote_sglist[i].addr - 12514 CacheMirrorOffset; 12515 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12516 CTL_FLAG_DATA_IN) 12517 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 12518 } else { 12519 local_sglist[i].addr = remote_sglist[i].addr + 12520 CacheMirrorOffset; 12521 } 12522#endif 12523#if 0 12524 printf("%s: local %p, remote %p, len %d\n", 12525 __func__, local_sglist[i].addr, 12526 remote_sglist[i].addr, local_sglist[i].len); 12527#endif 12528 } 12529 } else { 12530 uint32_t len_to_go; 12531 12532 /* 12533 * In this case, we don't have automatically allocated 12534 * memory for this I/O on this controller. This typically 12535 * happens with internal CTL I/O -- e.g. inquiry, mode 12536 * sense, etc. Anything coming from RAIDCore will have 12537 * a mirror area available. 12538 */ 12539 len_to_go = io->scsiio.kern_data_len; 12540 12541 /* 12542 * Clear the no datasync flag, we have to use malloced 12543 * buffers. 12544 */ 12545 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 12546 12547 /* 12548 * The difficult thing here is that the size of the various 12549 * S/G segments may be different than the size from the 12550 * remote controller. That'll make it harder when DMAing 12551 * the data back to the other side. 12552 */ 12553 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 12554 sizeof(io->io_hdr.remote_sglist[0])) && 12555 (len_to_go > 0); i++) { 12556 local_sglist[i].len = ctl_min(len_to_go, 131072); 12557 CTL_SIZE_8B(local_dma_sglist[i].len, 12558 local_sglist[i].len); 12559 local_sglist[i].addr = 12560 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 12561 12562 local_dma_sglist[i].addr = local_sglist[i].addr; 12563 12564 if (local_sglist[i].addr == NULL) { 12565 int j; 12566 12567 printf("malloc failed for %zd bytes!", 12568 local_dma_sglist[i].len); 12569 for (j = 0; j < i; j++) { 12570 free(local_sglist[j].addr, M_CTL); 12571 } 12572 ctl_set_internal_failure(&io->scsiio, 12573 /*sks_valid*/ 1, 12574 /*retry_count*/ 4857); 12575 retval = 1; 12576 goto bailout_error; 12577 12578 } 12579 /* XXX KDM do we need a sync here? */ 12580 12581 len_to_go -= local_sglist[i].len; 12582 } 12583 /* 12584 * Reset the number of S/G entries accordingly. The 12585 * original number of S/G entries is available in 12586 * rem_sg_entries. 12587 */ 12588 io->scsiio.kern_sg_entries = i; 12589 12590#if 0 12591 printf("%s: kern_sg_entries = %d\n", __func__, 12592 io->scsiio.kern_sg_entries); 12593 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12594 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 12595 local_sglist[i].addr, local_sglist[i].len, 12596 local_dma_sglist[i].len); 12597#endif 12598 } 12599 12600 12601 return (retval); 12602 12603bailout_error: 12604 12605 ctl_send_datamove_done(io, /*have_lock*/ 0); 12606 12607 return (retval); 12608} 12609 12610static int 12611ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12612 ctl_ha_dt_cb callback) 12613{ 12614 struct ctl_ha_dt_req *rq; 12615 struct ctl_sg_entry *remote_sglist, *local_sglist; 12616 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 12617 uint32_t local_used, remote_used, total_used; 12618 int retval; 12619 int i, j; 12620 12621 retval = 0; 12622 12623 rq = ctl_dt_req_alloc(); 12624 12625 /* 12626 * If we failed to allocate the request, and if the DMA didn't fail 12627 * anyway, set busy status. This is just a resource allocation 12628 * failure. 12629 */ 12630 if ((rq == NULL) 12631 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 12632 ctl_set_busy(&io->scsiio); 12633 12634 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 12635 12636 if (rq != NULL) 12637 ctl_dt_req_free(rq); 12638 12639 /* 12640 * The data move failed. We need to return status back 12641 * to the other controller. No point in trying to DMA 12642 * data to the remote controller. 12643 */ 12644 12645 ctl_send_datamove_done(io, /*have_lock*/ 0); 12646 12647 retval = 1; 12648 12649 goto bailout; 12650 } 12651 12652 local_sglist = io->io_hdr.local_sglist; 12653 local_dma_sglist = io->io_hdr.local_dma_sglist; 12654 remote_sglist = io->io_hdr.remote_sglist; 12655 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12656 local_used = 0; 12657 remote_used = 0; 12658 total_used = 0; 12659 12660 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 12661 rq->ret = CTL_HA_STATUS_SUCCESS; 12662 rq->context = io; 12663 callback(rq); 12664 goto bailout; 12665 } 12666 12667 /* 12668 * Pull/push the data over the wire from/to the other controller. 12669 * This takes into account the possibility that the local and 12670 * remote sglists may not be identical in terms of the size of 12671 * the elements and the number of elements. 12672 * 12673 * One fundamental assumption here is that the length allocated for 12674 * both the local and remote sglists is identical. Otherwise, we've 12675 * essentially got a coding error of some sort. 12676 */ 12677 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12678 int isc_ret; 12679 uint32_t cur_len, dma_length; 12680 uint8_t *tmp_ptr; 12681 12682 rq->id = CTL_HA_DATA_CTL; 12683 rq->command = command; 12684 rq->context = io; 12685 12686 /* 12687 * Both pointers should be aligned. But it is possible 12688 * that the allocation length is not. They should both 12689 * also have enough slack left over at the end, though, 12690 * to round up to the next 8 byte boundary. 12691 */ 12692 cur_len = ctl_min(local_sglist[i].len - local_used, 12693 remote_sglist[j].len - remote_used); 12694 12695 /* 12696 * In this case, we have a size issue and need to decrease 12697 * the size, except in the case where we actually have less 12698 * than 8 bytes left. In that case, we need to increase 12699 * the DMA length to get the last bit. 12700 */ 12701 if ((cur_len & 0x7) != 0) { 12702 if (cur_len > 0x7) { 12703 cur_len = cur_len - (cur_len & 0x7); 12704 dma_length = cur_len; 12705 } else { 12706 CTL_SIZE_8B(dma_length, cur_len); 12707 } 12708 12709 } else 12710 dma_length = cur_len; 12711 12712 /* 12713 * If we had to allocate memory for this I/O, instead of using 12714 * the non-cached mirror memory, we'll need to flush the cache 12715 * before trying to DMA to the other controller. 12716 * 12717 * We could end up doing this multiple times for the same 12718 * segment if we have a larger local segment than remote 12719 * segment. That shouldn't be an issue. 12720 */ 12721 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12722 /* 12723 * XXX KDM use bus_dmamap_sync() here. 12724 */ 12725 } 12726 12727 rq->size = dma_length; 12728 12729 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12730 tmp_ptr += local_used; 12731 12732 /* Use physical addresses when talking to ISC hardware */ 12733 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12734 /* XXX KDM use busdma */ 12735#if 0 12736 rq->local = vtophys(tmp_ptr); 12737#endif 12738 } else 12739 rq->local = tmp_ptr; 12740 12741 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12742 tmp_ptr += remote_used; 12743 rq->remote = tmp_ptr; 12744 12745 rq->callback = NULL; 12746 12747 local_used += cur_len; 12748 if (local_used >= local_sglist[i].len) { 12749 i++; 12750 local_used = 0; 12751 } 12752 12753 remote_used += cur_len; 12754 if (remote_used >= remote_sglist[j].len) { 12755 j++; 12756 remote_used = 0; 12757 } 12758 total_used += cur_len; 12759 12760 if (total_used >= io->scsiio.kern_data_len) 12761 rq->callback = callback; 12762 12763 if ((rq->size & 0x7) != 0) { 12764 printf("%s: warning: size %d is not on 8b boundary\n", 12765 __func__, rq->size); 12766 } 12767 if (((uintptr_t)rq->local & 0x7) != 0) { 12768 printf("%s: warning: local %p not on 8b boundary\n", 12769 __func__, rq->local); 12770 } 12771 if (((uintptr_t)rq->remote & 0x7) != 0) { 12772 printf("%s: warning: remote %p not on 8b boundary\n", 12773 __func__, rq->local); 12774 } 12775#if 0 12776 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 12777 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12778 rq->local, rq->remote, rq->size); 12779#endif 12780 12781 isc_ret = ctl_dt_single(rq); 12782 if (isc_ret == CTL_HA_STATUS_WAIT) 12783 continue; 12784 12785 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 12786 rq->ret = CTL_HA_STATUS_SUCCESS; 12787 } else { 12788 rq->ret = isc_ret; 12789 } 12790 callback(rq); 12791 goto bailout; 12792 } 12793 12794bailout: 12795 return (retval); 12796 12797} 12798 12799static void 12800ctl_datamove_remote_read(union ctl_io *io) 12801{ 12802 int retval; 12803 int i; 12804 12805 /* 12806 * This will send an error to the other controller in the case of a 12807 * failure. 12808 */ 12809 retval = ctl_datamove_remote_sgl_setup(io); 12810 if (retval != 0) 12811 return; 12812 12813 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12814 ctl_datamove_remote_read_cb); 12815 if ((retval != 0) 12816 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 12817 /* 12818 * Make sure we free memory if there was an error.. The 12819 * ctl_datamove_remote_xfer() function will send the 12820 * datamove done message, or call the callback with an 12821 * error if there is a problem. 12822 */ 12823 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12824 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12825 } 12826 12827 return; 12828} 12829 12830/* 12831 * Process a datamove request from the other controller. This is used for 12832 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12833 * first. Once that is complete, the data gets DMAed into the remote 12834 * controller's memory. For reads, we DMA from the remote controller's 12835 * memory into our memory first, and then move it out to the FETD. 12836 */ 12837static void 12838ctl_datamove_remote(union ctl_io *io) 12839{ 12840 struct ctl_softc *softc; 12841 12842 softc = control_softc; 12843 12844 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 12845 12846 /* 12847 * Note that we look for an aborted I/O here, but don't do some of 12848 * the other checks that ctl_datamove() normally does. We don't 12849 * need to run the task queue, because this I/O is on the ISC 12850 * queue, which is executed by the work thread after the task queue. 12851 * We don't need to run the datamove delay code, since that should 12852 * have been done if need be on the other controller. 12853 */ 12854 mtx_lock(&softc->ctl_lock); 12855 12856 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12857 12858 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 12859 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 12860 io->io_hdr.nexus.targ_port, 12861 io->io_hdr.nexus.targ_target.id, 12862 io->io_hdr.nexus.targ_lun); 12863 io->io_hdr.status = CTL_CMD_ABORTED; 12864 io->io_hdr.port_status = 31338; 12865 12866 mtx_unlock(&softc->ctl_lock); 12867 12868 ctl_send_datamove_done(io, /*have_lock*/ 0); 12869 12870 return; 12871 } 12872 12873 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 12874 mtx_unlock(&softc->ctl_lock); 12875 ctl_datamove_remote_write(io); 12876 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 12877 mtx_unlock(&softc->ctl_lock); 12878 ctl_datamove_remote_read(io); 12879 } else { 12880 union ctl_ha_msg msg; 12881 struct scsi_sense_data *sense; 12882 uint8_t sks[3]; 12883 int retry_count; 12884 12885 memset(&msg, 0, sizeof(msg)); 12886 12887 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 12888 msg.hdr.status = CTL_SCSI_ERROR; 12889 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 12890 12891 retry_count = 4243; 12892 12893 sense = &msg.scsi.sense_data; 12894 sks[0] = SSD_SCS_VALID; 12895 sks[1] = (retry_count >> 8) & 0xff; 12896 sks[2] = retry_count & 0xff; 12897 12898 /* "Internal target failure" */ 12899 scsi_set_sense_data(sense, 12900 /*sense_format*/ SSD_TYPE_NONE, 12901 /*current_error*/ 1, 12902 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 12903 /*asc*/ 0x44, 12904 /*ascq*/ 0x00, 12905 /*type*/ SSD_ELEM_SKS, 12906 /*size*/ sizeof(sks), 12907 /*data*/ sks, 12908 SSD_ELEM_NONE); 12909 12910 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12911 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12912 ctl_failover_io(io, /*have_lock*/ 1); 12913 mtx_unlock(&softc->ctl_lock); 12914 return; 12915 } 12916 12917 mtx_unlock(&softc->ctl_lock); 12918 12919 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 12920 CTL_HA_STATUS_SUCCESS) { 12921 /* XXX KDM what to do if this fails? */ 12922 } 12923 return; 12924 } 12925 12926} 12927 12928static int 12929ctl_process_done(union ctl_io *io, int have_lock) 12930{ 12931 struct ctl_lun *lun; 12932 struct ctl_softc *ctl_softc; 12933 void (*fe_done)(union ctl_io *io); 12934 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 12935 12936 CTL_DEBUG_PRINT(("ctl_process_done\n")); 12937 12938 fe_done = 12939 control_softc->ctl_ports[targ_port]->fe_done; 12940 12941#ifdef CTL_TIME_IO 12942 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12943 char str[256]; 12944 char path_str[64]; 12945 struct sbuf sb; 12946 12947 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12948 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12949 12950 sbuf_cat(&sb, path_str); 12951 switch (io->io_hdr.io_type) { 12952 case CTL_IO_SCSI: 12953 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12954 sbuf_printf(&sb, "\n"); 12955 sbuf_cat(&sb, path_str); 12956 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12957 io->scsiio.tag_num, io->scsiio.tag_type); 12958 break; 12959 case CTL_IO_TASK: 12960 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12961 "Tag Type: %d\n", io->taskio.task_action, 12962 io->taskio.tag_num, io->taskio.tag_type); 12963 break; 12964 default: 12965 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12966 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12967 break; 12968 } 12969 sbuf_cat(&sb, path_str); 12970 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 12971 (intmax_t)time_uptime - io->io_hdr.start_time); 12972 sbuf_finish(&sb); 12973 printf("%s", sbuf_data(&sb)); 12974 } 12975#endif /* CTL_TIME_IO */ 12976 12977 switch (io->io_hdr.io_type) { 12978 case CTL_IO_SCSI: 12979 break; 12980 case CTL_IO_TASK: 12981 if (bootverbose || verbose > 0) 12982 ctl_io_error_print(io, NULL); 12983 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 12984 ctl_free_io(io); 12985 else 12986 fe_done(io); 12987 return (CTL_RETVAL_COMPLETE); 12988 break; 12989 default: 12990 printf("ctl_process_done: invalid io type %d\n", 12991 io->io_hdr.io_type); 12992 panic("ctl_process_done: invalid io type %d\n", 12993 io->io_hdr.io_type); 12994 break; /* NOTREACHED */ 12995 } 12996 12997 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12998 if (lun == NULL) { 12999 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13000 io->io_hdr.nexus.targ_lun)); 13001 fe_done(io); 13002 goto bailout; 13003 } 13004 ctl_softc = lun->ctl_softc; 13005 13006 /* 13007 * Remove this from the OOA queue. 13008 */ 13009 if (have_lock == 0) 13010 mtx_lock(&ctl_softc->ctl_lock); 13011 13012 /* 13013 * Check to see if we have any errors to inject here. We only 13014 * inject errors for commands that don't already have errors set. 13015 */ 13016 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13017 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13018 ctl_inject_error(lun, io); 13019 13020 /* 13021 * XXX KDM how do we treat commands that aren't completed 13022 * successfully? 13023 * 13024 * XXX KDM should we also track I/O latency? 13025 */ 13026 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) { 13027 uint32_t blocksize; 13028#ifdef CTL_TIME_IO 13029 struct bintime cur_bt; 13030#endif 13031 13032 if ((lun->be_lun != NULL) 13033 && (lun->be_lun->blocksize != 0)) 13034 blocksize = lun->be_lun->blocksize; 13035 else 13036 blocksize = 512; 13037 13038 switch (io->io_hdr.io_type) { 13039 case CTL_IO_SCSI: { 13040 int isread; 13041 struct ctl_lba_len_flags *lbalen; 13042 13043 isread = 0; 13044 switch (io->scsiio.cdb[0]) { 13045 case READ_6: 13046 case READ_10: 13047 case READ_12: 13048 case READ_16: 13049 isread = 1; 13050 /* FALLTHROUGH */ 13051 case WRITE_6: 13052 case WRITE_10: 13053 case WRITE_12: 13054 case WRITE_16: 13055 case WRITE_VERIFY_10: 13056 case WRITE_VERIFY_12: 13057 case WRITE_VERIFY_16: 13058 lbalen = (struct ctl_lba_len_flags *) 13059 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 13060 13061 if (isread) { 13062 lun->stats.ports[targ_port].bytes[CTL_STATS_READ] += 13063 lbalen->len * blocksize; 13064 lun->stats.ports[targ_port].operations[CTL_STATS_READ]++; 13065 13066#ifdef CTL_TIME_IO 13067 bintime_add( 13068 &lun->stats.ports[targ_port].dma_time[CTL_STATS_READ], 13069 &io->io_hdr.dma_bt); 13070 lun->stats.ports[targ_port].num_dmas[CTL_STATS_READ] += 13071 io->io_hdr.num_dmas; 13072 getbintime(&cur_bt); 13073 bintime_sub(&cur_bt, 13074 &io->io_hdr.start_bt); 13075 13076 bintime_add( 13077 &lun->stats.ports[targ_port].time[CTL_STATS_READ], 13078 &cur_bt); 13079 13080#if 0 13081 cs_prof_gettime(&cur_ticks); 13082 lun->stats.time[CTL_STATS_READ] += 13083 cur_ticks - 13084 io->io_hdr.start_ticks; 13085#endif 13086#if 0 13087 lun->stats.time[CTL_STATS_READ] += 13088 jiffies - io->io_hdr.start_time; 13089#endif 13090#endif /* CTL_TIME_IO */ 13091 } else { 13092 lun->stats.ports[targ_port].bytes[CTL_STATS_WRITE] += 13093 lbalen->len * blocksize; 13094 lun->stats.ports[targ_port].operations[ 13095 CTL_STATS_WRITE]++; 13096 13097#ifdef CTL_TIME_IO 13098 bintime_add( 13099 &lun->stats.ports[targ_port].dma_time[CTL_STATS_WRITE], 13100 &io->io_hdr.dma_bt); 13101 lun->stats.ports[targ_port].num_dmas[CTL_STATS_WRITE] += 13102 io->io_hdr.num_dmas; 13103 getbintime(&cur_bt); 13104 bintime_sub(&cur_bt, 13105 &io->io_hdr.start_bt); 13106 13107 bintime_add( 13108 &lun->stats.ports[targ_port].time[CTL_STATS_WRITE], 13109 &cur_bt); 13110#if 0 13111 cs_prof_gettime(&cur_ticks); 13112 lun->stats.ports[targ_port].time[CTL_STATS_WRITE] += 13113 cur_ticks - 13114 io->io_hdr.start_ticks; 13115 lun->stats.ports[targ_port].time[CTL_STATS_WRITE] += 13116 jiffies - io->io_hdr.start_time; 13117#endif 13118#endif /* CTL_TIME_IO */ 13119 } 13120 break; 13121 default: 13122 lun->stats.ports[targ_port].operations[CTL_STATS_NO_IO]++; 13123 13124#ifdef CTL_TIME_IO 13125 bintime_add( 13126 &lun->stats.ports[targ_port].dma_time[CTL_STATS_NO_IO], 13127 &io->io_hdr.dma_bt); 13128 lun->stats.ports[targ_port].num_dmas[CTL_STATS_NO_IO] += 13129 io->io_hdr.num_dmas; 13130 getbintime(&cur_bt); 13131 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13132 13133 bintime_add(&lun->stats.ports[targ_port].time[CTL_STATS_NO_IO], 13134 &cur_bt); 13135 13136#if 0 13137 cs_prof_gettime(&cur_ticks); 13138 lun->stats.ports[targ_port].time[CTL_STATS_NO_IO] += 13139 cur_ticks - 13140 io->io_hdr.start_ticks; 13141 lun->stats.ports[targ_port].time[CTL_STATS_NO_IO] += 13142 jiffies - io->io_hdr.start_time; 13143#endif 13144#endif /* CTL_TIME_IO */ 13145 break; 13146 } 13147 break; 13148 } 13149 default: 13150 break; 13151 } 13152 } 13153 13154 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13155 13156 /* 13157 * Run through the blocked queue on this LUN and see if anything 13158 * has become unblocked, now that this transaction is done. 13159 */ 13160 ctl_check_blocked(lun); 13161 13162 /* 13163 * If the LUN has been invalidated, free it if there is nothing 13164 * left on its OOA queue. 13165 */ 13166 if ((lun->flags & CTL_LUN_INVALID) 13167 && (TAILQ_FIRST(&lun->ooa_queue) == NULL)) 13168 ctl_free_lun(lun); 13169 13170 /* 13171 * If this command has been aborted, make sure we set the status 13172 * properly. The FETD is responsible for freeing the I/O and doing 13173 * whatever it needs to do to clean up its state. 13174 */ 13175 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13176 io->io_hdr.status = CTL_CMD_ABORTED; 13177 13178 /* 13179 * We print out status for every task management command. For SCSI 13180 * commands, we filter out any unit attention errors; they happen 13181 * on every boot, and would clutter up the log. Note: task 13182 * management commands aren't printed here, they are printed above, 13183 * since they should never even make it down here. 13184 */ 13185 switch (io->io_hdr.io_type) { 13186 case CTL_IO_SCSI: { 13187 int error_code, sense_key, asc, ascq; 13188 13189 sense_key = 0; 13190 13191 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13192 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13193 /* 13194 * Since this is just for printing, no need to 13195 * show errors here. 13196 */ 13197 scsi_extract_sense_len(&io->scsiio.sense_data, 13198 io->scsiio.sense_len, 13199 &error_code, 13200 &sense_key, 13201 &asc, 13202 &ascq, 13203 /*show_errors*/ 0); 13204 } 13205 13206 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13207 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13208 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13209 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13210 13211 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13212 ctl_softc->skipped_prints++; 13213 if (have_lock == 0) 13214 mtx_unlock(&ctl_softc->ctl_lock); 13215 } else { 13216 uint32_t skipped_prints; 13217 13218 skipped_prints = ctl_softc->skipped_prints; 13219 13220 ctl_softc->skipped_prints = 0; 13221 ctl_softc->last_print_jiffies = time_uptime; 13222 13223 if (have_lock == 0) 13224 mtx_unlock(&ctl_softc->ctl_lock); 13225 if (skipped_prints > 0) { 13226#ifdef NEEDTOPORT 13227 csevent_log(CSC_CTL | CSC_SHELF_SW | 13228 CTL_ERROR_REPORT, 13229 csevent_LogType_Trace, 13230 csevent_Severity_Information, 13231 csevent_AlertLevel_Green, 13232 csevent_FRU_Firmware, 13233 csevent_FRU_Unknown, 13234 "High CTL error volume, %d prints " 13235 "skipped", skipped_prints); 13236#endif 13237 } 13238 if (bootverbose || verbose > 0) 13239 ctl_io_error_print(io, NULL); 13240 } 13241 } else { 13242 if (have_lock == 0) 13243 mtx_unlock(&ctl_softc->ctl_lock); 13244 } 13245 break; 13246 } 13247 case CTL_IO_TASK: 13248 if (have_lock == 0) 13249 mtx_unlock(&ctl_softc->ctl_lock); 13250 if (bootverbose || verbose > 0) 13251 ctl_io_error_print(io, NULL); 13252 break; 13253 default: 13254 if (have_lock == 0) 13255 mtx_unlock(&ctl_softc->ctl_lock); 13256 break; 13257 } 13258 13259 /* 13260 * Tell the FETD or the other shelf controller we're done with this 13261 * command. Note that only SCSI commands get to this point. Task 13262 * management commands are completed above. 13263 * 13264 * We only send status to the other controller if we're in XFER 13265 * mode. In SER_ONLY mode, the I/O is done on the controller that 13266 * received the I/O (from CTL's perspective), and so the status is 13267 * generated there. 13268 * 13269 * XXX KDM if we hold the lock here, we could cause a deadlock 13270 * if the frontend comes back in in this context to queue 13271 * something. 13272 */ 13273 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13274 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13275 union ctl_ha_msg msg; 13276 13277 memset(&msg, 0, sizeof(msg)); 13278 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13279 msg.hdr.original_sc = io->io_hdr.original_sc; 13280 msg.hdr.nexus = io->io_hdr.nexus; 13281 msg.hdr.status = io->io_hdr.status; 13282 msg.scsi.scsi_status = io->scsiio.scsi_status; 13283 msg.scsi.tag_num = io->scsiio.tag_num; 13284 msg.scsi.tag_type = io->scsiio.tag_type; 13285 msg.scsi.sense_len = io->scsiio.sense_len; 13286 msg.scsi.sense_residual = io->scsiio.sense_residual; 13287 msg.scsi.residual = io->scsiio.residual; 13288 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13289 sizeof(io->scsiio.sense_data)); 13290 /* 13291 * We copy this whether or not this is an I/O-related 13292 * command. Otherwise, we'd have to go and check to see 13293 * whether it's a read/write command, and it really isn't 13294 * worth it. 13295 */ 13296 memcpy(&msg.scsi.lbalen, 13297 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13298 sizeof(msg.scsi.lbalen)); 13299 13300 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13301 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13302 /* XXX do something here */ 13303 } 13304 13305 ctl_free_io(io); 13306 } else 13307 fe_done(io); 13308 13309bailout: 13310 13311 return (CTL_RETVAL_COMPLETE); 13312} 13313 13314/* 13315 * Front end should call this if it doesn't do autosense. When the request 13316 * sense comes back in from the initiator, we'll dequeue this and send it. 13317 */ 13318int 13319ctl_queue_sense(union ctl_io *io) 13320{ 13321 struct ctl_lun *lun; 13322 struct ctl_softc *ctl_softc; 13323 uint32_t initidx, targ_lun; 13324 13325 ctl_softc = control_softc; 13326 13327 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13328 13329 /* 13330 * LUN lookup will likely move to the ctl_work_thread() once we 13331 * have our new queueing infrastructure (that doesn't put things on 13332 * a per-LUN queue initially). That is so that we can handle 13333 * things like an INQUIRY to a LUN that we don't have enabled. We 13334 * can't deal with that right now. 13335 */ 13336 mtx_lock(&ctl_softc->ctl_lock); 13337 13338 /* 13339 * If we don't have a LUN for this, just toss the sense 13340 * information. 13341 */ 13342 targ_lun = io->io_hdr.nexus.targ_lun; 13343 if (io->io_hdr.nexus.lun_map_fn != NULL) 13344 targ_lun = io->io_hdr.nexus.lun_map_fn(io->io_hdr.nexus.lun_map_arg, targ_lun); 13345 if ((targ_lun < CTL_MAX_LUNS) 13346 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13347 lun = ctl_softc->ctl_luns[targ_lun]; 13348 else 13349 goto bailout; 13350 13351 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13352 13353 /* 13354 * Already have CA set for this LUN...toss the sense information. 13355 */ 13356 if (ctl_is_set(lun->have_ca, initidx)) 13357 goto bailout; 13358 13359 memcpy(&lun->pending_sense[initidx].sense, &io->scsiio.sense_data, 13360 ctl_min(sizeof(lun->pending_sense[initidx].sense), 13361 sizeof(io->scsiio.sense_data))); 13362 ctl_set_mask(lun->have_ca, initidx); 13363 13364bailout: 13365 mtx_unlock(&ctl_softc->ctl_lock); 13366 13367 ctl_free_io(io); 13368 13369 return (CTL_RETVAL_COMPLETE); 13370} 13371 13372/* 13373 * Primary command inlet from frontend ports. All SCSI and task I/O 13374 * requests must go through this function. 13375 */ 13376int 13377ctl_queue(union ctl_io *io) 13378{ 13379 struct ctl_softc *ctl_softc; 13380 13381 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13382 13383 ctl_softc = control_softc; 13384 13385#ifdef CTL_TIME_IO 13386 io->io_hdr.start_time = time_uptime; 13387 getbintime(&io->io_hdr.start_bt); 13388#endif /* CTL_TIME_IO */ 13389 13390 mtx_lock(&ctl_softc->ctl_lock); 13391 13392 switch (io->io_hdr.io_type) { 13393 case CTL_IO_SCSI: 13394 STAILQ_INSERT_TAIL(&ctl_softc->incoming_queue, &io->io_hdr, 13395 links); 13396 break; 13397 case CTL_IO_TASK: 13398 STAILQ_INSERT_TAIL(&ctl_softc->task_queue, &io->io_hdr, links); 13399 /* 13400 * Set the task pending flag. This is necessary to close a 13401 * race condition with the FETD: 13402 * 13403 * - FETD submits a task management command, like an abort. 13404 * - Back end calls fe_datamove() to move the data for the 13405 * aborted command. The FETD can't really accept it, but 13406 * if it did, it would end up transmitting data for a 13407 * command that the initiator told us to abort. 13408 * 13409 * We close the race condition by setting the flag here, 13410 * and checking it in ctl_datamove(), before calling the 13411 * FETD's fe_datamove routine. If we've got a task 13412 * pending, we run the task queue and then check to see 13413 * whether our particular I/O has been aborted. 13414 */ 13415 ctl_softc->flags |= CTL_FLAG_TASK_PENDING; 13416 break; 13417 default: 13418 mtx_unlock(&ctl_softc->ctl_lock); 13419 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13420 return (EINVAL); 13421 break; /* NOTREACHED */ 13422 } 13423 mtx_unlock(&ctl_softc->ctl_lock); 13424 13425 ctl_wakeup_thread(); 13426 13427 return (CTL_RETVAL_COMPLETE); 13428} 13429 13430#ifdef CTL_IO_DELAY 13431static void 13432ctl_done_timer_wakeup(void *arg) 13433{ 13434 union ctl_io *io; 13435 13436 io = (union ctl_io *)arg; 13437 ctl_done_lock(io, /*have_lock*/ 0); 13438} 13439#endif /* CTL_IO_DELAY */ 13440 13441void 13442ctl_done_lock(union ctl_io *io, int have_lock) 13443{ 13444 struct ctl_softc *ctl_softc; 13445#ifndef CTL_DONE_THREAD 13446 union ctl_io *xio; 13447#endif /* !CTL_DONE_THREAD */ 13448 13449 ctl_softc = control_softc; 13450 13451 if (have_lock == 0) 13452 mtx_lock(&ctl_softc->ctl_lock); 13453 13454 /* 13455 * Enable this to catch duplicate completion issues. 13456 */ 13457#if 0 13458 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13459 printf("%s: type %d msg %d cdb %x iptl: " 13460 "%d:%d:%d:%d tag 0x%04x " 13461 "flag %#x status %x\n", 13462 __func__, 13463 io->io_hdr.io_type, 13464 io->io_hdr.msg_type, 13465 io->scsiio.cdb[0], 13466 io->io_hdr.nexus.initid.id, 13467 io->io_hdr.nexus.targ_port, 13468 io->io_hdr.nexus.targ_target.id, 13469 io->io_hdr.nexus.targ_lun, 13470 (io->io_hdr.io_type == 13471 CTL_IO_TASK) ? 13472 io->taskio.tag_num : 13473 io->scsiio.tag_num, 13474 io->io_hdr.flags, 13475 io->io_hdr.status); 13476 } else 13477 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13478#endif 13479 13480 /* 13481 * This is an internal copy of an I/O, and should not go through 13482 * the normal done processing logic. 13483 */ 13484 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) { 13485 if (have_lock == 0) 13486 mtx_unlock(&ctl_softc->ctl_lock); 13487 return; 13488 } 13489 13490 /* 13491 * We need to send a msg to the serializing shelf to finish the IO 13492 * as well. We don't send a finish message to the other shelf if 13493 * this is a task management command. Task management commands 13494 * aren't serialized in the OOA queue, but rather just executed on 13495 * both shelf controllers for commands that originated on that 13496 * controller. 13497 */ 13498 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13499 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13500 union ctl_ha_msg msg_io; 13501 13502 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13503 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13504 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13505 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13506 } 13507 /* continue on to finish IO */ 13508 } 13509#ifdef CTL_IO_DELAY 13510 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13511 struct ctl_lun *lun; 13512 13513 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13514 13515 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13516 } else { 13517 struct ctl_lun *lun; 13518 13519 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13520 13521 if ((lun != NULL) 13522 && (lun->delay_info.done_delay > 0)) { 13523 struct callout *callout; 13524 13525 callout = (struct callout *)&io->io_hdr.timer_bytes; 13526 callout_init(callout, /*mpsafe*/ 1); 13527 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13528 callout_reset(callout, 13529 lun->delay_info.done_delay * hz, 13530 ctl_done_timer_wakeup, io); 13531 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13532 lun->delay_info.done_delay = 0; 13533 if (have_lock == 0) 13534 mtx_unlock(&ctl_softc->ctl_lock); 13535 return; 13536 } 13537 } 13538#endif /* CTL_IO_DELAY */ 13539 13540 STAILQ_INSERT_TAIL(&ctl_softc->done_queue, &io->io_hdr, links); 13541 13542#ifdef CTL_DONE_THREAD 13543 if (have_lock == 0) 13544 mtx_unlock(&ctl_softc->ctl_lock); 13545 13546 ctl_wakeup_thread(); 13547#else /* CTL_DONE_THREAD */ 13548 for (xio = (union ctl_io *)STAILQ_FIRST(&ctl_softc->done_queue); 13549 xio != NULL; 13550 xio =(union ctl_io *)STAILQ_FIRST(&ctl_softc->done_queue)) { 13551 13552 STAILQ_REMOVE_HEAD(&ctl_softc->done_queue, links); 13553 13554 ctl_process_done(xio, /*have_lock*/ 1); 13555 } 13556 if (have_lock == 0) 13557 mtx_unlock(&ctl_softc->ctl_lock); 13558#endif /* CTL_DONE_THREAD */ 13559} 13560 13561void 13562ctl_done(union ctl_io *io) 13563{ 13564 ctl_done_lock(io, /*have_lock*/ 0); 13565} 13566 13567int 13568ctl_isc(struct ctl_scsiio *ctsio) 13569{ 13570 struct ctl_lun *lun; 13571 int retval; 13572 13573 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13574 13575 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13576 13577 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13578 13579 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13580 13581 return (retval); 13582} 13583 13584 13585static void 13586ctl_work_thread(void *arg) 13587{ 13588 struct ctl_softc *softc; 13589 union ctl_io *io; 13590 struct ctl_be_lun *be_lun; 13591 int retval; 13592 13593 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13594 13595 softc = (struct ctl_softc *)arg; 13596 if (softc == NULL) 13597 return; 13598 13599 mtx_lock(&softc->ctl_lock); 13600 for (;;) { 13601 retval = 0; 13602 13603 /* 13604 * We handle the queues in this order: 13605 * - task management 13606 * - ISC 13607 * - done queue (to free up resources, unblock other commands) 13608 * - RtR queue 13609 * - incoming queue 13610 * 13611 * If those queues are empty, we break out of the loop and 13612 * go to sleep. 13613 */ 13614 io = (union ctl_io *)STAILQ_FIRST(&softc->task_queue); 13615 if (io != NULL) { 13616 ctl_run_task_queue(softc); 13617 continue; 13618 } 13619 io = (union ctl_io *)STAILQ_FIRST(&softc->isc_queue); 13620 if (io != NULL) { 13621 STAILQ_REMOVE_HEAD(&softc->isc_queue, links); 13622 ctl_handle_isc(io); 13623 continue; 13624 } 13625 io = (union ctl_io *)STAILQ_FIRST(&softc->done_queue); 13626 if (io != NULL) { 13627 STAILQ_REMOVE_HEAD(&softc->done_queue, links); 13628 /* clear any blocked commands, call fe_done */ 13629 mtx_unlock(&softc->ctl_lock); 13630 /* 13631 * XXX KDM 13632 * Call this without a lock for now. This will 13633 * depend on whether there is any way the FETD can 13634 * sleep or deadlock if called with the CTL lock 13635 * held. 13636 */ 13637 retval = ctl_process_done(io, /*have_lock*/ 0); 13638 mtx_lock(&softc->ctl_lock); 13639 continue; 13640 } 13641 if (!ctl_pause_rtr) { 13642 io = (union ctl_io *)STAILQ_FIRST(&softc->rtr_queue); 13643 if (io != NULL) { 13644 STAILQ_REMOVE_HEAD(&softc->rtr_queue, links); 13645 mtx_unlock(&softc->ctl_lock); 13646 retval = ctl_scsiio(&io->scsiio); 13647 if (retval != CTL_RETVAL_COMPLETE) 13648 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13649 mtx_lock(&softc->ctl_lock); 13650 continue; 13651 } 13652 } 13653 io = (union ctl_io *)STAILQ_FIRST(&softc->incoming_queue); 13654 if (io != NULL) { 13655 STAILQ_REMOVE_HEAD(&softc->incoming_queue, links); 13656 mtx_unlock(&softc->ctl_lock); 13657 ctl_scsiio_precheck(softc, &io->scsiio); 13658 mtx_lock(&softc->ctl_lock); 13659 continue; 13660 } 13661 /* 13662 * We might want to move this to a separate thread, so that 13663 * configuration requests (in this case LUN creations) 13664 * won't impact the I/O path. 13665 */ 13666 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13667 if (be_lun != NULL) { 13668 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13669 mtx_unlock(&softc->ctl_lock); 13670 ctl_create_lun(be_lun); 13671 mtx_lock(&softc->ctl_lock); 13672 continue; 13673 } 13674 13675 /* XXX KDM use the PDROP flag?? */ 13676 /* Sleep until we have something to do. */ 13677 mtx_sleep(softc, &softc->ctl_lock, PRIBIO, "-", 0); 13678 13679 /* Back to the top of the loop to see what woke us up. */ 13680 continue; 13681 } 13682} 13683 13684void 13685ctl_wakeup_thread() 13686{ 13687 struct ctl_softc *softc; 13688 13689 softc = control_softc; 13690 13691 wakeup_one(softc); 13692} 13693 13694/* Initialization and failover */ 13695 13696void 13697ctl_init_isc_msg(void) 13698{ 13699 printf("CTL: Still calling this thing\n"); 13700} 13701 13702/* 13703 * Init component 13704 * Initializes component into configuration defined by bootMode 13705 * (see hasc-sv.c) 13706 * returns hasc_Status: 13707 * OK 13708 * ERROR - fatal error 13709 */ 13710static ctl_ha_comp_status 13711ctl_isc_init(struct ctl_ha_component *c) 13712{ 13713 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 13714 13715 c->status = ret; 13716 return ret; 13717} 13718 13719/* Start component 13720 * Starts component in state requested. If component starts successfully, 13721 * it must set its own state to the requestrd state 13722 * When requested state is HASC_STATE_HA, the component may refine it 13723 * by adding _SLAVE or _MASTER flags. 13724 * Currently allowed state transitions are: 13725 * UNKNOWN->HA - initial startup 13726 * UNKNOWN->SINGLE - initial startup when no parter detected 13727 * HA->SINGLE - failover 13728 * returns ctl_ha_comp_status: 13729 * OK - component successfully started in requested state 13730 * FAILED - could not start the requested state, failover may 13731 * be possible 13732 * ERROR - fatal error detected, no future startup possible 13733 */ 13734static ctl_ha_comp_status 13735ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 13736{ 13737 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 13738 13739 printf("%s: go\n", __func__); 13740 13741 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 13742 if (c->state == CTL_HA_STATE_UNKNOWN ) { 13743 ctl_is_single = 0; 13744 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 13745 != CTL_HA_STATUS_SUCCESS) { 13746 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 13747 ret = CTL_HA_COMP_STATUS_ERROR; 13748 } 13749 } else if (CTL_HA_STATE_IS_HA(c->state) 13750 && CTL_HA_STATE_IS_SINGLE(state)){ 13751 // HA->SINGLE transition 13752 ctl_failover(); 13753 ctl_is_single = 1; 13754 } else { 13755 printf("ctl_isc_start:Invalid state transition %X->%X\n", 13756 c->state, state); 13757 ret = CTL_HA_COMP_STATUS_ERROR; 13758 } 13759 if (CTL_HA_STATE_IS_SINGLE(state)) 13760 ctl_is_single = 1; 13761 13762 c->state = state; 13763 c->status = ret; 13764 return ret; 13765} 13766 13767/* 13768 * Quiesce component 13769 * The component must clear any error conditions (set status to OK) and 13770 * prepare itself to another Start call 13771 * returns ctl_ha_comp_status: 13772 * OK 13773 * ERROR 13774 */ 13775static ctl_ha_comp_status 13776ctl_isc_quiesce(struct ctl_ha_component *c) 13777{ 13778 int ret = CTL_HA_COMP_STATUS_OK; 13779 13780 ctl_pause_rtr = 1; 13781 c->status = ret; 13782 return ret; 13783} 13784 13785struct ctl_ha_component ctl_ha_component_ctlisc = 13786{ 13787 .name = "CTL ISC", 13788 .state = CTL_HA_STATE_UNKNOWN, 13789 .init = ctl_isc_init, 13790 .start = ctl_isc_start, 13791 .quiesce = ctl_isc_quiesce 13792}; 13793 13794/* 13795 * vim: ts=8 13796 */ 13797